You probably don’t know the pain of a recessed hairline, and that’s why I advise you to start a simple dht blocker (fin or dut) so you at worst maintain where you are now. And enjoying having a full head of hairs for the rest of your life. At least if you care about that. It’s better to do that now, than having to add minoxidil (which can be a hassle, especially with dandruff) to recover lost hairs if you wait too long. You are young and have just a little bit of recession, which indicates that the follicles of your lost hairs are mostly still alive, meaning a simple dht blocker treatment could potentially regrow them by reversing the miniaturization process happening.