I’m going to college this upcoming year and I’m feeling happy about it, but I’m also sad/nervous. I’m an only child so I’m very close to my parents (especially my mom), and I’m worried about missing them. I’m so close to my mom, I tell her almost everything and I still cuddle with her. I’m also worried because they helped me with homework in high school and they won’t be there in college. Plus I’m worried about missing the food from home. I don’t let my parents see it, but sometimes at night when I’m going to sleep I cry into my pillow. All of my friends are excited about going to college and they all want to get away from their parents because they’re tired of their parents, but I’m not 
Just thinking about having to leave home gives me a lump in my throat. I don’t know what to do. I’m scared I’m going to be so homesick (more than a normal girl), and that I’ll be crying in the shower and at night when I go to sleep. What can I do? It’s not like I can visit that often, the college is 9 hours away by car.
I think college is just what you need. You won’t always have your parents there with you; you have to move out some day. At the very least, you’ll be surrounded by people who have similar feelings. All your friends say they’re so excited, but when it comes to Moving Day, they’ll feel just like you.
I know how you feel - I was worried too because of how close I am. You’re allowed to feel this way, even if everyone else seems like they’re fine.
You can still do this - text, call, and Skype as often as makes sense for you.
Get in touch with your school’s tutoring and writing centers the first week of school. Your parents aren’t tutors, and you’ll eventually run into material they won’t be able to help with. Get comfortable using the tutors employed by your school.
You will, but campus food doesn’t suck as much as it’s reputed to. You’ll be back home for breaks and holidays, and you’ll probably get leftovers to take back for when you feel homesick.
I encourage you to be open with your parents about how you feel. Bottling it in now won’t help anyone. Also get in touch with your school’s student counseling center and make an intake appointment. You’ll probably feel less homesick when you start adapting to your new environment, but it’s good that they have a file on hand on you in case you need it.
My daughter is an only child and very close to her father and I. She is a college freshman now and I am sure that she was scared about being homesick and missing us. We were scared and knew we would miss her too. We are from the northeast US but live and work in Asia where our daughter grew up, so when we left her at college in Massachusetts in August we knew we would not be able to get together again until now. We have all adjusted. We do text via Skype almost everyday and have a video call every couple of weeks, sometimes more frequently. We miss each other, but she has to go to school and has to grow up, and you do too. You will learn and grow in so many ways that you can’t even imagine right now.
@elliebham gave excellent suggestions especially the part about talking to your parents about how you are feeling. They are nervous too. You three can make a plan for how to cope. Also, my daughter still cuddles too, something that I am enjoying while she is home for Christmas break.
As a parent I would consider a college about an hour from home or so. Far enough away that you start to get some independence, but close enough that you can visit sometimes.
Also talk to your parents about getting evaluated for anxiety disorders.