I(23M) am struggling with focusing and comprehending things. I'm unable to stay calm and I'm always anxious and stressed. My grades are dipping, I cannot even sit calmly and study.

I was always an anxious kid but I was a straight A student throughout my life but I'm struggling to keep up with grad school. My perception of time is messed up, my situational awareness is pathetic. I cannot control my emotions not behave my self and I more often than not embarrass myself. I am stress all the time even though there is nothing to worry about.

I've been to a psychiatrist and he has suggested it is an anxiety disorder and depression and prescribed me lexapro and propranolol. He also suggested it can be ADHD. I feel extremely suicidal and emotional imbalance because of this.

What kind of condition is this?