Whats wrong with me?

Hey everyone. Lately life hasnt been so good, especially my social life. I used to be one of the most funny guys of my group, people loved talking to me and everything but now, idk why, im just not as loved by people i used to be. Some events in my life made me a little sadder which made me less funny and then people started cutting me off , from groups, stropped inviting me to parties and hangouts which has further ruined my social life and made me even worse emotionally and i just cant cope. I got a ton of academic pressure and on top of it my social life is messed up real bad. Whats wrong with me?