It can be hard to manage yourself when you're up against so many deadlines. As a result, it might be wise to follow some stress-busting techniques. You want to divide this into three parts: screen time, distraction, and management.
With screen time, you want to give yourself at least a few minutes away from screens, especially if you're working from home. Shut your screen off and close your eyes - it might help you feel better, especially if you've been around devices all day.
During this time, distract yourself - listen to music, talk with your colleagues, meditate - all of these distractions help you focus on yourself, instead of your work. And once you're all relaxed - capitalize on it.
Start managing your work. Make a list of all your work and anxieties, and think about how you can avoid these issues. Take advantage of your brief period of relaxation to stamp out your stress permanently by managing what you will do going forward. Busting your stress is just adapting an issue, but the best stress buster is completely mitigating the problem.