I'm well into the second 1000 weeks (22 years of programming). I don't think there are any decent timeline hacks - just do something, see if it works, and if no

I'm well into the second 1000 weeks (22 years of programming). I don't think there are any decent timeline hacks - just do something, see if it works, and if not, roughly after 6 months I suggest you stop, and take a 6-12 months break. Then, try something else. I've tried and failed quite a few times (10+), and my current experiment - while I think it's a successful one, time will tell. One thing I would suggest is you read "The Mom Test" book -- I think it'll serve you well in the long run (it's about marketing, and you'll need to do that if you develop your own products).