Why does studying make me so depressed?

I literally don’t have any motivation to study. I always procrastinate to the last minute, and when the deadline comes, I know I won’t be able to finish it and I get very depressed. Just thinking of all the things I have to do makes me so anxious it gives me anxiety attacks and leads me to a downward spiral again.

I’m not physically busy but my mind is, always, so when it happens, that’s the time I start procrastinating and play games to ease my mind. This would go on for a week to a month, and then it would be the same again. It’s hard for me to focus on what I’m doing. I always find myself searching for a breather even if I’m not busy. Is there anything I can do to stop this? Please help me.