It isn't a great idea to compare yourself to others. You can have friends if you are willing to put in the work to get one. You can enjoy summer if you can think about doing fun things by yourself or with family. You can go on a vacation by yourself if you have the funds to do it. You can have sex if you put yourself out there to meet a significant other to work towards a relationship.

You see, life is what YOU make it. Go out there and make the best out of it!