TA is not something that you should be doing something with exact precision profit making. Thats not going to end up with a lot of profit if you just focus on that, sure there is a chance that you may, but that is not always the case and if you get ready for profiting each time then you are going to make a loss.

Just use it like a tool, and consider TA as something that "helps" you but not the main thing, if you could do that then you will be fine. Add in a lot of stuff, like community size, project creators involvement, decentralization if possible, the road map and many other things basically and if you could still get a nice thing then TA on top of that would be fine.