If I argue, please know that I'm truly afraid for your soul. I believe you're believing lies, and they are damning.
Romans 1:26-27-26
"For this reason God gave them up to dishonorable passions. For their women exchanged natural relations for those that are contrary to nature; 27 and the men likewise gave up natural relations with women and were consumed with passion for one another, men committing shameless acts with men and receiving in themselves the due penalty for their error."
Here, we see that men gave up the natural desire for women in exchange for man-to-man desire.
This also applies to women, as it says "and the men likewise," meaning both being gay and lesbian are "dishonorable."
In addition to this, the Bible only promotes a monogamous, man-woman relationship. In several places in the OT, Israel is seen as a bride, not a man. The same goes to the church in the NT. And in the NT, it's given as an example for a righteous relationship between one man and one woman.
(Eph. 5:22-31)
"5 For you may be sure of this, that everyone who is sexually immoral or impure, or who is covetous (that is, an idolater), has no inheritance in the kingdom of Christ and God. 6 Let no one deceive you with empty words, for because of these things the wrath of God comes upon the sons of disobedience."
(I Corinthians 6:11)
There is forgiveness in God, because He sent His son to atone for the sins of all who repent and believe. Please, repent.