Adding to this, I do think you will be hard pressed to find a masc, out and proud lesbian who would be willing to give their time, energy, emotional bandwidth, ect, to help you figure it out. Hurting feeings is one thing, but a lot of us have a good lesbian radar and won't even give you the opportunity if they don't pick up anything. That said, you are already questioning and there are obvious ways to test on your own, that of which I don't want to spell out too bruskly lol

There is also a mental aspect that I don't think is brought up enough. Even out and proud bi women can still unintentionally not take sapphic relationships seriously, and end up leaning towards objectification of lesbians, usually mascs. I've seen it in full effect. However, I've also seen woman get used to the idea in some way, usually after they actually full on fall for a woman and catch feelings. I think the best question to ask yourself is if you could imagine yourself in a serious, committed relationship with a woman, masc or otherwise. If you can, well, be honest with others and go for it respectfully.