Online dating works best when you actually know what you're looking for. Are you interested in finding a committed relationship? Or are you more interested in casual dating and sex? Or maybe you're just looking to meet interesting new people?
Set a clear intention for what you're looking for. It may even be helpful to sit down beforehand and journal a little bit about what kind of relationship you want and who would be the ideal person to do that with. That way, you can be thoughtful as you evaluate people's profiles and decide whether to swipe right (connect) or swipe left (pass) on someone. Focus on matching with people who actually align with your dating goals.