Help, I'm going crazy?

my mind seems to have entered into a self destructive phase whereby I seem to acknowledge the positive about me, my abilities and skills, especially social skills and in doing so I sort of lose them. Like the ability to communicate, it's like there's a second voice in my head making me fantasize what could be a reality and in doing so it doesn't feel like it would if it were to come by flow... Well I'm struggling right now to communicate my thoughts. It's a process that's now seeming so tasking. There's this voice in my head making me overthink everytthing I'm doing and at the end of it I just feel mentally and emotionally exhausted. I've become more irritable, impatient and feeling angry and stressed. What could I be going through? I've noticed that I don't take praise too well now.. It's like whenever someone else or myself acknowledge an achievement I make it overloads my mind and that task becomes slightly more difficult I feel as if it's a trait of perfectionsim.