and here are breakdowns by year:
year 1: https://maxrozen.com/2018/12/31/2018-review-starting-an-inte...
year 2: https://maxrozen.com/2019/12/29/2019-further-reflections-try...
year 3: https://maxrozen.com/indiehacking-3-year-review
year 4: https://maxrozen.com/2021-strangers-paid-my-macbook
In short, do this on the side while having a full time job. It makes failure a non-event (it still hurts psychologically, but at least you can pay your bills).