It's completely up to you if you want to drop out then that is always an option, you can only make the decision. You won't be a disappointment and it may be better if you go to a different uni. However, don't forget summer is coming very soon, I'm guessing you will go home for that and perhaps see old friends. It may be worth sticking it out until then and then having a good think about if you want to go back.. I have seen a lot of times that people only make proper friends in 2nd or 3rd year once all the excitement of being at uni dies down and people start making proper connections..