This was my experience until I started using a fitbit to get an accurate daily burn count. It showed that I was setting my calorie count way too low, hence the hunger issue. If I eat the fitbit daily burn minus 500 calories I lose 1 lb a week with no hunger issues.
The plain joy of solving problems via code. I'm 55 and wake up every day with another set of problems to code against, it never gets old. You can also make a lot of money along the way if you take some risks.
I exit when I either no longer love the product or see a replacement product I like better. I have my accounts at Fidelity and my 10 year RoR is 33% vs 9.78% for the S&P 500 (31% going back to 2003 when I consolidated accounts there).
What I like about the approach is that product is a leading indicator and can be judged by anyone. The financials and stock price seem to trail the product by 1-3 years on both the upside and downside.
BTW I fully agree with the original premise of the thread and think if you try actively trade on financials, timing etc. as a part timer you will get smoked by the pros, sooner or later.
My product tastes are pretty mainstream, nothing obscure. In the early days I liked Windows and Netware as I did a lot of consulting work with them and had good runs with them. I sat out the dotcom boom and bust as I was putting all my cash into my gigs. In the internet era I liked the business Saas'es (SFDC, N, HUBS, BOX) because I believe in and understand that industry. I was amazed by OSX the first time I tried it so bought Apple. I bought Amazon, Google and SIRI pretty early when I saw what heavy users of the products me and my family were. I was blown away by the first Tesla I saw and bought that. I like the latest fitbits so I just bought some of that, let's see what happens to that. I don't look at the price or financials on either the entrance or exit so on the negative side I sold Apple a few years ago and missed the last half of the run.
For the last 30 years I have bought stock in tech products I use and like and hold it until I no longer like the product. This simple strategy has dramatically outperformed the indexes. In hindsight the last 30 years have been great for tech so maybe I just got lucky on my industry selection.