How do i fix waswas about shirk?

I keep getting waswas of shirk, and I watched a video about the existence of God coz I saw it on youtube, and I read a lot of things about people losing their faith and even one or 2 things about apostates (NOT because I wanted to be like them. Is this a sin? I told my parents and friends about my problem. Is that a sin? I dont know how to get rid of this, because it interferes even whilst doing the dhikr meant to keep it away. Might ruqya help?