agree with wartooth118. also be open and curious about people and in general. go to places where you’re likely to meet people you could be interested in and vice versa. for example, if you are looking for a normal, long-lasting relationship that isn’t all about sex only, you probably shouldn’t go to the club and get the first random girl on your way. don’t blame yourself for being ‘unsuccessful’ in finding a girlfriend, because the more you do the more it shows, and the more desperate you will seem the more likely it is that girls will just turn you down. accept and love yourself, because (and this is such a cliché) if you do not, you cannot expect others to love you either. for this you have to get to know yourself fully and deeply.

i hope i helped, if you have any more questions or advice needed, pm me.