Dear human, thank you for reaching out and sharing your concern, it’s not always easy to express. First things first, I’m glad that you are able to achieve 8 hours regular of sleep at night. It is very essential that the brain gets that amount of rest for better cognitive and physical functioning. It’s understandable that you're experiencing lack of concentration, pent up anger and frustration and these could be because of many reasons like anxiety, fear, self-doubts, traumatic events, stressors, negative life events, etc of which only you would be aware. Therapy would help you to analyse your concerns, consciously be aware of the sources of your concerns and vent your anger out in a safe space. When you feel agitated, angry or you are unable to focus, there are a couple of tips that will help you calm yourself down: 1. When you identify that your thoughts are going in that direction, take a break from whatever you are doing, sit down, clear your mind and take 3 long deep breaths. 2. Sometimes the best way to clear your mind is to declutter or clean your space. So you could look at cleaning and decorating your space as you like it. 3. Maintain a journal of all the disturbing thoughts that make you take away your focus from the present, that is write down your thought when you stresses out or unable to focus. This would help in reflecting on what you're undergoing and why. 4. You do also go for a walk or watch a comedy serial or movie to distract yourself from distressing thoughts.

To get clarity and to understand yourself better I suggest you to consult a psychological Counselor.. They might help you to get rid of your Anger and Irritation too.

Hello Firstly you can sleep for eight hours is a good sign but after that you seem to be worked up with something or someone or some situation.Need to know the cause of your anger and frustration.Try to figure out the cause that is troubling you and try to figure out a solution of the problem if is there one .