Feeling Lost and Lonely: Dealing with Emotional Turmoil

I feel so weird... I feel as though I am having a crisis especially after I'm out of college for the summer. I am unsure what to do as of right now. I feel this huge void inside me and it's just making me feel irritated and very empty. I'm not too sure what's going on but I noticed that I've been acting weird such as: Talking less, not engaging with my peers and friends, quiet, more stressed out, anxious, and depressed. I know it might be because my family moved in with me and I'm just scattered with my family as of right now. I miss the guy I like a lot but we haven't talked really. I have reached out but he hasn't been responding even if he is online. I just feel weird and lonely about it. I miss him and love him.. kind of at a lost right now. I wonder if others are feeling this way. I wish this void would stop. it literally makes no sense and I'm having a hard time getting back into reality. Everything is so far but it is so near. I have no idea what to do.