Some others have already mentioned some of these things. My approach is one of both mind and body.
Mind:
1. Do a 10-day Vipassana[1] to jump into meditation (this could take some time as they usually have a wait list). My belief is everything starts with the mind. This will help establish a foundational meditation practice (which in time will become your ultimate weapon against stress). Not to say one can ever be stress-free, but more along the lines that you will have tools to deal with it in a healthy manner.
2. See a therapist so that you can talk to someone about the struggles you have (using BetterHelp you could start this today). I don't think anyone is immune from stress. Stressors (like work, relationships, money, kids etc) can (for some people) show up as weight on the body as a defense mechanism. Talking to someone regularly may help with this.
Body:
1. Hire a sport nutrition person to come up with meals that work for you that take any food allergies into account. Sounds like you already found something that works for you.
2. Do blood work regularly (every 3 months) to track various health markers.
2. Hire someone to cook the meals from the nutritionist
3. Hire a personal trainer that can help keep you getting to the gym. The personal trainer can help come up with a program that will help you achieve your goals.
Consistency is more important that how much weight you can lift or how far you can walk.
I think this starts with defining what great culture means. For me, great culture means; prioritizing a work/life balance, health (mental and physical), trust, expertise, EQ and diversity (to name a few).
I've been at the USDS for about 14 months and find their culture to be an awesome fit for me.
Marshall talks about jackals and giraffes. In a nutshell, jackal language is what we all use everyday. Giraffe language is the language he is proposing we use to enable human connection.
I agree with @PaulHoule note on meditation. It helps me a ton. If you are new to this, one idea is sign up for a 10-day silent retreat[1]. There are apps, however this in-person, all distractions removed has worked wonders for me. It's free (food and lodging). Also here's one key tip that could help make it successful.[2] Planning to attend another one next month!
I am also envious of those that can sleep anywhere, anytime. That is not me for sure. I have to work to sleep! LOL. I think some other things to consider are light exposure, last meal time, exercise, waking up at the same time, mask and earplugs. Feel free to skip any of these you have already tried.
RE: light exposure; I feel that when I'm not around devices (TV, phone, monitors) or light sources (bulbs, LED lights) etc, my body is able to feel tired earlier. I try and reduce lighting after 7pm to get my body 'ready' to sleep. This also is a good excuse for me to be off my computer at a reasonable time. Candle light and a fire has a way of making me feel naturally tired.
RE: last meal time; I feel that when I have my last meal by 7pm, there's a good chance that I feel empty enough to go to sleep. While my gf prefers to eat right before she goes to bed, I found the opposite works for me. I also like waking up feeling hungry rather than sleeping on a full stomach.
RE: exercise; working out doing something, walking, running, weights, whatever seems to help me feel tired earlier.
RE: waking up at the same time; sometimes I don't feel tired and end up staying up until 4am due to some Netflix special that I just HAVE TO know what happens. I try and force myself to get up at the same time and eventhough I'll be tired the next day, there's a good chance I can get back on schedule.
RE: ear plugs and eye mask; I feel these are awesome to help me fall asleep and stay asleep. I'm a light sleeper and so once I'm up it's hard to fall back asleep. Also these help when I'm in a new environment (hotels or friend's house).
My goal is to be in bed by 11pm. 10pm would be even better. I've been tracking my data for about 6 months. I am able to hit this goal on average 73% of the time. I'm hoping to get this up to 75% next quarter. It's not my goal to be perfect but rather just improve slowly. I also understand that I will regress from time to time and that's ok as well.
Could adding a google form to the site work for you? It's fairly straight forward to trigger JS script to onSubmit form action plus the sheet doubles as a database.
I was trying to understand what good engineering managers look like IRL and I found that "Managing Humans" (3rd edition) by Michael Lopp addressed that and made me laugh along the way. :)
Mind: 1. Do a 10-day Vipassana[1] to jump into meditation (this could take some time as they usually have a wait list). My belief is everything starts with the mind. This will help establish a foundational meditation practice (which in time will become your ultimate weapon against stress). Not to say one can ever be stress-free, but more along the lines that you will have tools to deal with it in a healthy manner. 2. See a therapist so that you can talk to someone about the struggles you have (using BetterHelp you could start this today). I don't think anyone is immune from stress. Stressors (like work, relationships, money, kids etc) can (for some people) show up as weight on the body as a defense mechanism. Talking to someone regularly may help with this.
Body: 1. Hire a sport nutrition person to come up with meals that work for you that take any food allergies into account. Sounds like you already found something that works for you. 2. Do blood work regularly (every 3 months) to track various health markers. 2. Hire someone to cook the meals from the nutritionist 3. Hire a personal trainer that can help keep you getting to the gym. The personal trainer can help come up with a program that will help you achieve your goals.
Consistency is more important that how much weight you can lift or how far you can walk.
[1] https://www.dhamma.org/en-US/index