IB, When I was experiencing what you are at this time, I made a list for each day. It helped me to stay on track as to what needed to be completed and when. Also, I looked at the tasks that I could knock out quickly and did them first and then worked on the harder ones.
What you are experiencing is very normal and in time, you will settle down. In all areas of life, keep your expectations low or zero for now. Are you taking any time for yourself? If not, that is one of the main tasks on your list of things to do, carve out some time for yourself. Listen, there are things that you don't need to do as a priority. For example, your home doesn't need to be spotless all of the time. Look at your home as being lived in and comfortable. You will learn to "retrain" your thought processes along the way. We all have had to do this, but it takes time and you may be trying to rush the process along and it won't work.
Today, carve out some "me" time and just sit down and enjoy a good book or watch the game.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.