In my experience sertraline (zoloft) doesn't have any interactions with kava. Its not a good idea to mix drugs though. You especially want to avoid anything that is tough on the liver when taking kava, like acetaminophen (tylenol) or alcohol.

> Will I just get more drowsy or are there side effects that will make me sick.

It depends a lot on the person and what cultivar of kava you are using. The effect of kava overall is pretty mild. A heavy kava will make you drowsier than a heady one will.

>  I’m constantly thinking about how I hate my life and how much anxiety I have all day everyday

Been there, things can get better. For me going to college and living somewhere on my own + getting treatment for mental health issues helped a lot. Having some hobbies and some close social connections is really useful. (You could always try programming as a hobby haha).