Don't hook up with them anymore on the best local hook up apps. If you choose not to delete their contact details, or if they contact you for another date, say no. This may seem like a good idea at the time if you are still single and lonely, but it will only drag you further into the rabbit hole.
Be aware that you may try to explain to yourself why it is a good idea to date again. For example, if they call you and ask you to come over, you may say to yourself, "Well, dating them again may help me get rid of this idea," or "re-meeting with them will remind me that I am not I think they are not as good as I have been thinking about". These two things are unlikely to come true in the end.
Remind yourself that this is just for fun. Think of your one-night stand as a learning experience. Perhaps from your one-night stand, you already understand that casual sex is not easy without emotional intervention. Now you know that this is not an easy task, it doesn't matter.
Think about the aspect that that person doesn't match with your expectation of a partner. When you have a feeling for someone, especially at the beginning, it is easy to overlook the aspect of this person who is not in line with your expectations. Since your goal is to overcome the feeling towards that person, try to focus on the differences in your personality, lifestyle, hobbies, and so on. I hope this helps you realize that a relationship will not succeed.
Look for more meaningful relationships. Many people suggest giving yourself some time to heal after breaking up. However, in this case, you didn't break up with someone, so you have no reason not to look for a more emotional relationship. This will help you realize that one night hookup is great, but it doesn't necessarily mean love
If you are not sure how to get to know other people and how to look for a partner, you can try online dating and the best local hookup apps. Ask your friends if they know anyone who introduce.
Try to do something you like, which gives you an opportunity to meet other people. For example, volunteer for the cause you care about. If you have a religion, be a member of the church. This will help you find people who share your values.