Lonely

So ever since the beginning of this school year started in August I’ve gotten more lonely. I try to make plans with my friends I try to keep busy but all I can seem to do is lay in bed and be alone. When I want to be with my friends on the weekends they are always busy. When I was supposed to be with them this coming weekend she said she was going to Florida after telling me we would hang out this weekend. I don’t talk to my two best friends about the things that really matter. I love them but I don’t know how to communicate with them on a deep level about myself and how I truly feel. I feel so alone all of the time and there’s not really anything I can do about it. This school year just made it more noticeable to me. What do I do?