Honestly, I would talk to your therapist, a psychiatrist, your parents, etc and really consider everyone's opinion. Think about what you hope to gain improvement-wise and how long/ how much you are willing to stick with medications.

It's true that they won't steal your thoughts and they can help, especially in the short-term, but it is also true that you don't know how your body will react, what side effects you will have and whether you are setting yourself up for a life-time of medication. You're young so you don't know how your emotional/ mental health will develop as you get older, but that isn't any reason to suffer needlessly, you know.

Personally, I'm a heavy thinker as well. My medication has shaved some of the emotional highs and lows that used to come with my though processes. But the catch is depression did this too.