About the Decentralized Exchanges (DEX). For my experience, I only just tried before using some ERC20 DEXs. I think it was on EtherDelta before when bull run 2017-2018, the rice of ERC20 ICOs before and a lot of people using those kinds of Decentralized Exchange where it is good since you will just import your wallet in the exchange and you can do whatever you want, no one will able to get or take over your account since you are using your own wallet to trade there.