How to find a girlfriend?

Female/18/Hispanic
I've noticed not many lesbians and or bisexual girls don't like me due to the fact I'm fat. I'm not crazy overwheight just slightly and Everytime I ask a girl out they usually say "oh uh well I do love your personality and you're super fun to hang out with- I would date you but.." or they'll usually give off an excuse that is obvious they're rejecting me because of my weight and or appearance. I've even tried dating guys as a desperate attempt for love but they even reject me. Is there any lesbian/bi girl who likes dating plus size women? And or dont mind me being plus size? I can't help being fat...I have a medical condition and it's hard for me to loose weight even if I try my hardest. I know I deserve as much love as any other cute skinny girl, I have so much love and care to offer, I just wish other lesbian/bi girls would see that..