It's really great that you have managed to open up here. As you say, your family and friends are probably aware that you are getting anxious but if you have never directly discussed it with them then they probably won't understand exactly how you are feeling or how they can help. I think it would be a great first step to try to discuss it with some people you trust and ask for their support.
I don't know where you are from so I'm not sure what professional help would be available in your area? Hopefully there will be something feasible that can help you to get through this though.