30F,I hope someone can change me.

I'm 30 years old this year. My life consists of going to work and coming home every day. I feel like I don't have much of a social life. I only have colleagues, not friends. I've lost contact with my former classmates since graduation. Now I only have some colleagues to chat with occasionally. I watch movies alone, and I eat hamburgers and drink cola alone. I'm afraid that if I slowly start to enjoy this kind of life, I might feel very lonely.