I don't think that you can make sure profits even if you learn TA and FA. When I started my crypto journey I thought that trading would be a good idea if I learnt the necessary skills and that I could take it as a part-time job, but after reading to writers who are very knowledgeable and still very critical on this subject I believe that trading is too risky, and not only for beginners.

I will not be the one to take away your desire to learn and put into practice your knowledge on the subject, but I would take it more as a hobby than as an actual side-career.