If what you mean by shady character is a coin that is not clear like a meme coin that is trending, then what you should do is get out of trading in coins like that, not get out of trading.
New coins whose development is not clear will make your trading focus only on luck, if you are lucky you can make big profits, if not you will suffer big losses which will make you frustrated, but if you are an experienced trader then it is difficult to be interested in coins like that because experience has taught you many things because what is happening now has also happened a long time ago, where many new coins have emerged which more often give big losses to real traders unless you are involved in a group that is used to dumping and pumping, which make you only trades relies on the movement of the group.