What can I do to recover from a short term burnout? Over the past few days, my advisor and I had been going really hard. We got a really good idea and the preliminary results looked good, so I started spending long days in the lab, going home only to sleep. My advisor saw this and he started spending a lot more time with me and we had long meetings whenever I requested. This has been going on for about 4 weeks and although I loved it while I was in it, I feel burnt out now. There are still really exciting things I need to try but I don't know why I can't get myself to do any of them. 

What is a good strategy to escape this burnout phase? 

I have already tried:


Playing an instrument I was good at
Just taking some time off
Limiting my work hours


But none of these and others seem to work.
For a true burnout you will need to stop working, rest, and seek counseling/medical help. You need to lower your expectations of yourself and virtually eliminate what others expect from you. Ultimately, because work is about expectations (either self-imposed or set by others), I doubt that you can continue working and recover from a burnout. 

Given that you state that the burnout occurred over a short period, rather than a sustained year-upon-year effort, my advice is to take a vacation. Three weeks should do the trick.

Just remember, life is about enjoying it, not earning money, because in the end you will take nothing with you.