I have been running scrapingdog.com as my side project. This is a web scraping api which can scrape any website in just single GET request. I launched this last year.
Find a problem and start working on it. Since you have a prior knowledge of coding you can start by building a simple SAAS or mobile app for a very small problem. This will give you a little push you need to jump on some high end projects. This pump will motivate you to build something unique.
You can find some free material over here:
1) medium.com
2) freecodecamp.org
3) hackernoon.com
4) udemy.com
Maybe try to create some good blog content. Rank them on low competition key words. This will help you to get organic traffic. More organic traffic more MRR. Keep up the good work.
A typical nuclear reactor produces 1 gigawatt (GW) of electricity. That doesn’t mean you can simply replace it with a 1 gigawatt coal or renewable plant. IDK how it is a flop.