Gonna get a little personal here, but....
I grew up Chabad. I realized that I wasn't straight when I was 13, and my parents found out and forbid me from talking to my friends. For a whole year I was cut off from the friends I had made who had helped me come to terms with my identity. Some of these friends I've never spoken to again, because I didn't have their numbers memorized and it's been so long.
My parents have come around for the most part. I'm now in my twenties. I currently identify as a transgender man and bisexual. I wear tzizit and a Kippah, and I'm observant. These two aren't in conflict for me. I keep strict kosher and Shabbat (although I've eaten a non-Chalav Yisrael chocolate and I hated it, American chocolate is disgusting, and I eat gebrochts on Pesach). I'm one of the only "frum" students at my university, and I'm also the president of the LGBTQ organization there. In April, Im Yirtze Hashem I'm going to my first doctor's appointment that'll screen me for and medical issues before I start taking testosterone.
Last Summer, I had the privilege of attending NYC Pride with the LGBTQ Jewish organizations that were part of the parade. We called it Jew York Pride. I made so many new friends who were queer and frum just like me. People who live in the heart of Crown Heights, who go to Yeshiva and seminary, who are gay and bisexual and lesbian and trans and nonbinary and asexual. I had no idea there were so many LGBTQ people within Chabad. Some still identify as Chabad, others don't, but lots are still observant.
There are Orthodox communities that are accepting. On Chanukah I visited a shul that was Orthodox and LGBTQ accepting. We made menorahs while Chaddische music played and there were all kinds of people there. Unfortunately the shul is too far from where I currently live to be walking distance, but hopefully I'll move closer in the next few years.
It's hard. It's not easy. But it's possible, and you have a community of people just like you all around the world.
There are organizations and support groups that specifically cater to Orthodox and observant LGBTQ Jews (this isn't a thorough list of all LGBTQ Jewish organizations, just a few I selected that are specifically for LGBTQ observant Jews):
This is just a very basic list, and if you're not from North America or Israel there are other organizations around the world, these are just a few I selected.
If you ever want to talk to me, please don't hesitate to reach out. You are not alone- you are among so so many people like you.