Trading or day trading is one of the hardest job in the world. There are 3 types of trader.
Crypto trader (long term: years/trade)
Stock trader (middle term: days, weeks maybe month/trade)
Forex trader (short term: daily, weeks/ trade) You can buy/sell in forex but you cannot sell before buy in stocks or in crypto. (Iam trading forex mostly XAU/USD, EUR/USD). Its a very difficult business but if you manage to stay calm and learn all the mental and the strategy that suits you than you gonna be unstoppable at it.