Here OP if you wanna believe bitcoin is a good investment and profitable currency then never mind crush drop price. Because bitcoin price never stable and we couldn't know the future movement. Every year we can see bitcoin price much to volatile like you should back 2017 last and after 2018 chart. Therefore i would like to say first thinking never invest in bitcoin without your own skills.
Yeah thats the main reason a lot of people think crypto is some sort of scam - you can gain a lot of money, you can lose same amount.
But basically its like hardcore mode of stonks trading, less predictable and less known