Am I alone in this?

I am 31 years old, male, and been Single for almost 3 years now. I'm finishing my Masters degree in English Literature, go to the gym 3-4 times a week and am in decent shape. Of course looks and money are not everything in a relationship, but they also cannot hurt. The past years I have spent over 500 bucks on various dating apps and I barely get any matches and have not even met one girl.

Is this normal? Am I doing something wrong? What are your experiences? What do girls really look for in a profile? Guys that get a lot of matches, what do you do? I am genuinly confused and tbh quite sadden at the lack of results I have been getting.