If that can't, it's better to trade with two different accounts where the first account is to make a stop loss and the second account to take profit. And in my opinion this method is the same, though a little ineffective
Very ineffective. And you need to be double exposed... Actually it does not work really.
The other thing is that a proper professional trader atm has quite a problem as they need to register multiple accounts on multiple exchanges etc. In traditional market they just need one broker, one account and that's it. Crypto is still quite ineffective but has huge potential.