Yuki, welcome to PsychCentral (PC). I find it an interesting place that can be soothing to my fears.

See if your university has a counseling center and go see them. Your family (or anyone else) won't have to know. I did that when I was in university.

I had a lot of symptoms of GAD for a long time and still worry too much sometimes. I am helped when I am around calm, friendly people rather than on my own because my own head can get to be too much for me.

If you can learn to be nice to yourself, not tell yourself lies like that you are undeserving or stupid, etc. that is about the only way I know to combat worry. You are working hard at your school work and that is admirable. Give yourself credit for trying! Be kind to yourself, especially when you are taking a test; picture yourself doing well on the test and reward yourself for taking the test and doing the best you can.

You would not be in university unless people outside of you thought you could do the work? And you have done the work up to where you are now! Use other people's good judgments if you are telling yourself lies and not being friendly to yourself. Use your mother's and fiance's love to help you rather than pushing them away. Love is love, it is there to help and you insult the other person when you do not accept that help. If you said to me, "Perna, I like what you say" and I said, "No, it is not good" that would be an insult to you and your feelings and judgment! It is the same if you tell the people who love you that they should not love you.