Hello brother. I take issue with what you wrote. It's definitely NOT an Aveira to be gay. If you were born with a pull to these desires, or even if you developed these tendencies later on in your life, that's not your fault in any way shape or form. It's a Nisayon that Hashem gave you for reasons we don't know while we're on this world. Why he chose you specifically for this test is beyond our understanding. You might be a Tzaddik of the greatest Madreiga, and are in a place that many of us can't even fathom. To have urges that there's no kosher outlet for, and still succeed fighting to stay clean is worthy of everyone's absolute admiration. Even if you've fallen on occasion, but are seeking help in trying to extricate yourself from acting out, you're still a fighter in Hashem's army. Accordingly, you will find acceptance, compassion and understanding here more than anywhere else.
However if you mean that you're acting on those desires, and have accepted that it's okay to act on them, and are seeking validation for that, please be informed that we assume that people here accept what the Torah says to be absolute and the Torah calls these acts תועבה an abomination. There can and will not be any sympathy for someone who says that the act is okay, it's not something we condone, nor is it acceptable to validate. I'm assuming that you're part of the first group that has accepted your urges, and you're embracing the fight which is nothing short of heroic. It's the act that's an abomination, not ח"ו the person with urges toward it. As such, welcome dear brother to the forums and Hatzlacha on your journey.