What should I do?

It is kinda weird I know

but how can I talk to my crush(girl)?

She is older than me,masc and sooooo beautiful

Like the prettiest person in the whole mfcking universe

I want to kiss her so much

I see her 1 time a week and we are close

But she has been cold to me I hope its from her period. But who would get this cold in their period?

She is single but maybe she is flirting with someone but I'm not sure

Plus she is lesbian so I have a chance!!

But I don't how to explain my feelings to her

What if she say no? What if she tells that to her other friends? (her other friends don't really like me) What if she make fun of me? I DON'T KNOW