How Do I Get Rid Of My Doubt Of God?

In this episode, Dr. Betters answers the question, "Hey Dr. Betters, I started watching your videos a few days ago after getting insomnia from the fear of death. It's weird, I have plenty of time, I’m only 13, which is not exactly late in my life. But I tried praying to God a few times, just asking for advice and stuff. Not sure if it worked, since I don't really get responses. Is it normal to doubt God sometimes? Cause I know the chances of us not having a god, or an intelligent creator are next to nothing, but there’s this part of my brain that keeps using logic that I learned from other people, what it should be ‘scientifically.’ How do I get rid of my doubt and solidly believe in the lord?"