My sexual orientation issues are causing me to be depressed. who can i talk to about this?

There are many : Therapists who have expertise in this area. It may be much easier for you if you find someone who can be a good sounding board and whom you can sort this out with. You deserve to feel better.

Affirming therapy: Struggles related to our identities can be extremely difficult. I highly recommend seeking out a psychologist who specializes with lgbtq populations and offers an identity affirming space where you can learn to address your struggles. You can absolutely live a life in which you celebrate and are proud of different aspects of your identity including your sexual orientation. All the best!