I wanted to start you a new thread as we were getting off topic of the other one.
First of all, did your sister say why she didn't want you to come over? Did she have something going on and didnt't want to be interupted? Maybe she had plans to do something else. Being that she is in college now, and starting a new life right now, it is kind of understandable that she wouldn't want you there. Not that she does'nt care, but she may have already have had plans. Maybe you could call her and set up a time that is more convenient for her.
Why do you feel unwanted by your family? Just because you feel that way, doesn't make it so. I am sure that your parents love you very much. Do they both work? You need to be realistic. If you were unwanted, you wouldn't be there.
I am sorry that your father made jokes about your sister not wanting you to come over. What did he say?
I hope that you can feel better about things. It is okay if you are not feeling well enough to open up to others, in time you will. I remember going through that stage at your age. Bu the way, how old are you? That would help alot with giving advice. Do you see a counselor? That is very important right now.
I hope that you feel better.
Karen