This resonates with me a lot. Stress can be handled do something which is easy to do but opposite of your current activity for example. Running, Gym or any anything that takes your mind of that isssues.
Lack of Sleep - This is difficult one. Procrastination ruins sleep. Just try to let it go. Do something boring to make you fall asleep.
Lack of clarity - Talk. Talk to someone in your team even junior dev or your manager. What happens is that our mind ends up in loop which doesn't break. Lack clarity signifies that you either don't understand requirement clear enough to make task out of it or you trying to figure way smarter solution than what you need at hand.
Lack of Sleep - This is difficult one. Procrastination ruins sleep. Just try to let it go. Do something boring to make you fall asleep.
Lack of clarity - Talk. Talk to someone in your team even junior dev or your manager. What happens is that our mind ends up in loop which doesn't break. Lack clarity signifies that you either don't understand requirement clear enough to make task out of it or you trying to figure way smarter solution than what you need at hand.