I lost my mom last year too, I'm happy to know that you are feeling better
Things are extremely difficult the first year, but I hope you kept going to university, my feelings when I lost her were the same as yours, I felt suddenly so scared about my future, I almost felt that something kicked inside my head, I had to work harder and care for myself, I'm still trying to adjust, but what I'm trying to say is that is natural to feel scared, care for yourself and keep doing what you think it was good before all of this happened, don't lose focus of what you wanted in life, perhaps right now it seems as unimportant or useless, but is not. Best wishes for you.