Would it really be so terribly bad if you were a lesbian? An exercise that might be worth trying is thinking of all the ways in which your life would be different if you are. I did this when I was questioning and found that actually, my sexuality would have little if any bearing on the life i continue to lead.
Now, I realise this makes me fortunate compared to what some people are put through and I understand that this might actually be a triggering reply for a myriad of reasons but please know it's meant with the best intentions

I just hope that whatever you do or don't come to understand, you'll have the support in place to help you adjust accordingly.
Why not join the LGBTQ group on here? It's a great place for information and support. All the best.