I know society and movies and media and all that stuff tells you that single girls are supposed to be unhappy but it’s NOT TRUE.
You should feel beautiful for yourself, not a guy. Please understand that while guys can be an important part in your life they are not everything, and life is full of so many other amazing things to feel happy about like friends, family, hobbies, careers/school. A guy should not turn into your whole life.
I’ve seen way too many girls jumping from guy to guy (even me) just to not be single, even if they are setting for guys that aren’t good for them. Don’t sell yourself short like that, you deserve what you really want, even if it takes longer to find than those around you.
Try dressing nice for yourself, even if you aren’t going to go anywhere. Give yourself that confidence boost you deserve, and whatever you do, never doubt your worth just because a guy didn’t appreciate it.