I need advice

I have a crush on this girl I go to church with, (Im agnostic but my mother forces me to go) so for the past few weeks Ive liked this girl and she is just so sweet and kind and pretty and shes also socially akward which makes me lime her way more bc i am too. This morning I went to throw my grandmas and my coffee cup away when she was standing infront of it just so i could say hi to her well when i said good morning really inthusiastically and smiley which i never really act that way she immediately blushed heavily and smiled at me and then akwardly like shimmied out of the way and i could tell she was gonna say something when i glanced at her and then she stopped which all this could be anxiety bc i have it too so i understand but shes normally not smiley or all grinny like that either so idk tbh. In the past at events weve talked about music and our lives and stuff but only occasionally but straight out of her grandmas mouth she said that she (my crush) dosent even talk to people shes not comfortable around so idk if thats a good or bad sign. I have very low self confidence but i looked snazxy tdy my hair was good i had like one pimple and i had a pink dress shirt and a floral tye and my edith glasses iyky like i got 5 or 6 compliments and i NEVER get compliments i just wanted to add that in case it factors in yk. Now heres the problem my family has known her grandma who is a very sweet lady for a long time she was my moms baby sitter im just really worried if i do ask her itd be weird (also im homeschooled so i havent had much social experience for like 2 years) and also shes a grade below me which idk if tgat would be considered weird or not idk i just want any advice or opinions possible sorry this was grammatically a shithole.