Circumstances do not define your life. It is what you do with the circumstances that define your life. Happiness is not a set of circumstances, it is a set of attitudes!
Right now no matter how many problems, challenges and deadlines you have, there is bound to be something working well in your life. Articulate what is working well for you albeit small and put your attention to it.
You will realize soon enough that your energy level will improve simply by this one small switch. If you continue that focus you will find that your problems, challenges, and deadlines will be less daunting. You will tackle your problems, challenges, and deadlines more calmly and effectively.
Why is this the case? Simply because you began by what is working in your life. Where attention goes, energy flows!