New to the Community and Struggling with Medication Change

Hi, I'm new here. I've never actually spoken to people 'like me' before that is people with the same mental illness as me. Just an initial thinking out loud kinda thing really but I've been on sertraline since I was about 12/13ish ever since I was diagnosed more or less and now my symptoms are getting worse and worse more so than they've ever been my doc suggested changing my medication to a newer better drug forget the name but of course to do that id have to come off of ny current meds be off then for a little while before going on the new ones. This terrifies me. And although I know it'll hopefully help long term it just never seems like a good time to cut the cord on my current meds so to speak. Any advice/shared experiences would be greatly appreciated. Thanks all.