Hi, I'd like to help you with your question.
It is possible to get a lot of work done in a day with these steps:
Write down a to do list. Check it off as you get it done.
Organize your work area. That could be a desk or a whole house.
Prioritize your work. Decide what needs done now and what can wait a while.
Take breaks as you need them. Leave your work area totally and change your scenery.
Keep yourself fed and drink plenty of fluids. You don't want to lose energy because you are too hungry.
Do stretching exercises and deep breathing to help you feel relaxed and less tense.
I hope this helps you,Kate