She is wayyy to Richhh

A girl has a crush on me .. Idk why, I'm not soooo good looking nor do i have any skills not money idk (note that the girl is prolly the most pretty girl in the whole city, has like 18-19 boys crushing on her just from my academy) . Yesterday she confessed to me , she said that she wants to date to marry and I'm the guy with the best mentality for that and she knows it, not like she is bad or something, she's wayyy to sweet and dont mind me to call her hot too (her choice of words in some moments >>>) and i would have accepted the next second she asked me out but, she is from a rich family, I'm from lower middle class, I use like 500-600rs per monthh, but HER, this lady gets 15k rs as pocket money, has a driver for her, eats protein bars which are 300rs per piece, wtf, and has some hair and sometthing idk properly but that is another 6-7k per month and all this while being a state level athlete, I'm like a 100 floors away from reaching her level . I don't even know if she truly likes me, or is joking idk (I've never seen her joke with anyone else tho, and talks diffremtlu with others) Guys genuinely, wtf am I supposed to even do, I'll most prolly reject, but what would be the politest way? There are some typos🙏🏿