You can learn Crypto trading on your own without any help from anyone, but you can't do this with forex/stock-market.
i disagree. trading is not different in that sense. the markets are different. so you need to learn more about the market instead and learn trading in general. you learn what affects cryptocurrencies and what affects currencies and stocks in Forex and Stocks market. then you learn how to trade and the general points about that.
as for the "help" you will learn it a lot better and easier if you have a help but the problem is finding that "help". some random guy on the internet that is promising to help or giving you points or "signals" is not the "help" you want.
Quit true to learn crypto with little or no help but doing that with forex or stocks requires more technical knowledge and analysis than you can do trading bitcoins or alternative currencies.