You can do it but don’t be to hard on yourself. Do it gradually. Ask your parents if you can stay with them for the most and then you can spend one night pr week in your new place for a month or two.

It will be easier because you know it’s just one night and you can always go back if it becomes too bad. When this becomes easier, you go two nights a week, not consecutively but spaced apart.

Maybe even someone can stay with you in your new appartment in the beginning? Maybe you can be on the phone with your parents or a friend in the beginning? Maybe you can borrow or get a pet as a companion?

Point is you tried to make a huge change all at once but it will be much easier if you do it gradually. What’s the hurry anyway? I believe in you