The unforgivable sin

I am 19 years old in September, and for most of my life I rejected and mocked Jesus. Publicly. And I feel a lot of shame for not just that but taking Jesus’s death for granted and living my life the way I wanted. I used to get drunk underage, I tried weed gummies, while neither of those stuck around I still feel shame. When I was in junior year one of my closest friends was talking to me about Christianity and I mocked it. As I’ve always done. But I met a person who went through so much trauma and the only thing that made her feel human was her faith and it’s rubbing off on Me, I won’t get into specifics because that is her life and story and isn’t mine to share. Her faith is rubbing off on me and now I’m going to read the Bible, I’ve felt tremendous guilt for my sins, specifically lust as that is the one that has had a chain on me and prayed for help and his guidance. But because of my words and actions as a kid, will I ever be forgiven?