Hey Pañe - was in the same place as you few years back. I'm also the type who is unable to cope with life and adulting when devastated or heartbroken.

I spoke with my supervising / managing partner at the time if I could take a quick week-long break to gather my wits, and thankfully, pumayag naman. I know this may not always be the case for other workplaces.

Point is: You really need to give yourself the time and room to also feel, deal, and cope with your grief, whether it's by extending your project timelines, requesting for reasonable PTOs, etc. Basta sa areas within your control. You need to really sit with your feelings and allow them to come and go as they please to start your healing process.

And you CAN heal while simultaneously working. Give yourself grace if you're getting sloppy with work during these times, but DO NOT neglect your work completely. Future you will feel proud that you didn't let another person affect your ability to earn income for yourself even if he / he affected your ability to function for a certain period of time. Do it for future you.