It’s entirely okay to use medication to improve your mental health. There are serious things like depression, anxiety, and mania out there that are chemical in origin and there is nothing wrong with using chemistry to get rid of them.

You should do this with the help of a good doctor and trusted people who can help give you perspective on how you’re doing. When you say “take drugs to make yourself a better person” I can’t tell if you are looking for permission to get high or addressing the topic of mental health meds in earnest.