did it work at the end? I want to make a crypto trading bot seems simpler than stock one

Not the GP but I made trading algorithm for a living (not on crypto) and have friends still doing that (on crypto): yes it can work, but in 99% of cases you shouldn't do it for the money. Let me expand:

If you can afford to spare part of your income and invest that for long term buy and hold, that'll work better (ex. ETF).

If you can't spare anything, focusing on leveling up trendy skills, then you can land a better job on the short term.

However if you just want to trade for the fun of it, yes crypto can be simpler than stock, mainly because the API are better. Set up a maximum budget as a safety net and enjoy :)

Could you share what you learned in order to make that trading algorithm?

If you can find some barely known crypto with a lack of liquidity then you might be able to get your feet wet and test out your algorithms. Doesn't mean you will earn a lot of money.