I know this is a stupid question, but you could maybe possibly write a route where you try to be assertive and fail/ and or enjoy being a sub. Maybe you find a top to whisk you away from your shit life.
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I don't know any entirely lesbian or strictly LGBT projects, cause there aren't many of them and I'm not a fan of such content, but I hope this will help you a bit:
Residents of Evilville - a RE parody, definately lesbian-friendly game about girls and bondages. Your character is a silly simpleton Claire who is dominated by a girl and could dominate over other girls herself. She usually runs into stupid and funny situations mostly related with bondages, and there are a lot of lesbian or bisexual situations. Also it's developer has some more games similiar to this one.
Third Crisis - a really good game by itself, but also lesbian-friendly. Your main character is literally a young lesbian woman who seek for her lost girlfriend in a dark lustful sci-fi world. Your possible companions are: a stripper woman (highly interested in you), gay soldier, plant girl and futa girl. The game has lots of straight cocks, but it all depends on your decisions. You could become a street whore, or stay pure and pride and eventually get your girlfriend back, or even take a shortcut - became a wife of a local porn mistress and walk into sunset with her.
Raven's Quest - an old-fashioned RPG, still has a lot of dicks, but still a bit lesbian-friendly. Your character is a young forest witch, and basically you can just explore the world, make some decisions and see what will happen. There are kinks like dominance, submission, exhibitionism, bestiality, breeding and many other. What I particularly remember is that you can invite two or three different girls (and girls only) to live with you in your house, with spicy benefits of course.
Venture Seas - an RPG about pirates where you can create your own character of any gender and romance with any of your companions. You can also have captives there and change their sex and appearance using magic potions. And there are a lot of trans and futa girls too.
Also try Deep Vault - a Fallout parody game where you could play as a futa girl banging other women.
Other games with a female protagonist that have some lesbian & trans scenes, but mostly it's straight or bisexual: Void Bound, Overgrown Genesis, Good Girl Gone Bad, Claire's Quest, Jessika's Curse, Luna in the Tavern, Rodinka's Lewd Adventures, The Wind's Disciple, The Fixer, The Island, Lyndaria and the newest Price for Freedom game. Some of them are more open-minded than the others. The first two of this seems the most lgbt-friendly to me, and the third one has an entire lesbian route. You could also try Tentacle Locker, I guess...
Games about futa girls: Hard Times at Sequoia State Park, Syahata's Bad Day, Lust's Cupid. I specifically recommend you to try Sequoia State Park.
Games with femdom (partly): Femtality, Doting Dominatrix, Pure Onyx.
Also you should try anime Mahou Shoujo ni Akogarete - it's an ecchi (not a hentai) with zero boys in it - literally 100% of all characters are female. I think you'll especially enjoy episode 10 ;)
I don't really know what exactly you're looking for, but you can also search on my profile page here on itch, if you want to. Maybe you'll find something that fits you..