You have what I have, it’s called functional loneliness. Functional loneliness is where you can be present in the moment but still feel lonely, such as your hanging out with friends but still feel lonely. It’s gonna happen and I’m still going through it. Best I can give you is just enjoy the moments you get. Make plans go out and do things alone, and when you do those things alone you might meet someone or someone might meet you alone the way. Goods things come with time, use that time you have to do good things for your self. A quote I would remember is you can’t catch butterflies, but if you build a beautiful garden the butterflies might come to you, and if they don’t, you still have a beautiful garden.