Now that you are done with your PhD, I have a new homework assignment for you: learning to read people. Particularly, spotting people who are looking for a relationship, and it's easier than it sounds. What you essentially need to be able to do is spot weaknesses in others. Vulnerabilities. A person who is not allowing themselves to be vulnerable is not ready for a real relationship. I'm not talking about looking for a partner with a bunch of problems (though it's good to be able to spot this early on too). There is a particular look people have when they want a relationship, but recognizing it takes practice. Unfortunately, when you're also looking or feel interested in a particular person it gets a lot harder to spot. Emotions are blinding, and it's much easier to see straight when you have no skin in the game. Do you have any single female friends that you can be a wing-woman for? Practice spotting the ones who are genuinely looking on behalf of a friend, it will give you experience in picking out quality gentlemen and provide you with the detachment you need to make good decisions. You can apply your newfound skill-set to your own life, and you will probably meet someone along the way. You are still young, there is still plenty of time.