Struggling to reconnect with Christianity and my faith

Hey everyone, I'm 16M and recently decided to open myself up to Christianity again after a long time. I grew up in an atheist household but began going to church around age 9 alongside my Christian grandmother. I became very involved in the Church and quickly became a very faithfully member. However, it wasn't long till I learned that homosexuality was considered a sin and my entire worldview was shattered. I've always known I was LGBT and until that point I had never once thought that it might be considered a sin (I was young and ignorant, okay lol?) I was a young tween then and I began to find it very hard to keep going to church, especially since it suddenly became evident how the people at my church felt about the LGBT. I no longer felt accepted and I felt extremely alienated in a place that I thought was meant to be a caring community with an all-loving god. Because of this, I stopped going to Church and cut all ties with Christianity.

Now, I'm not proud of what I'm about to say, but I actively began holding a lot of resentment and hatred toward religion because of the kind of Christians I saw online and in real life who made it clear they hated people like me and that we were something that had to be "fixed" or that we were "mistakes". I realise now how childish it is to group all Christians together and I'm ashamed of letting myself become like that. However, I still do hold a lot of trepidation towards Christians who aren't LGBT or made it clear that they support the community and I'm not sure how to resolve this.

Anyways, to cut to the chase, I'd like to be a Christian again, I see a lot of positive things in the faith and I miss the sense of peace and joy it originally gave me. The problem is, I'm not sure how to go about repairing my relationship with Christ after so many years. Do I even believe in God anymore? How do I even start rekindling my faith? Can I? I am hoping that some other LGBT Christians who have gone through similar experiences can give me some advice or really just anyone at all. Thank you for reading.

TLDR: lgbt teenage guy needs help repairing relationship with christ after holding a lot of hatred towards religion