You watch videos or read blogs about trading in crypto currency not just bitcoin and zi think theres someone who already recommend you binance acedemy, but the thing is you should be ready to spend some money in order to learn many things in trading and also no matter what study you will do if you will not practice to do trading execution then you will nit ge the hang of it, so I recommend that while you are learning about trading practice in demo trading in order to apply what you have learned little by little you will get the hang of it and you may discover ways of how can you earn based on what style you eant.