Take it seriously. Take a break, at least a month, preferably 2 or 3. I lost my best DBA 3 months ago due to burnout and I was on the verge of burning out mysel

Take it seriously. Take a break, at least a month, preferably 2 or 3. I lost my best DBA 3 months ago due to burnout and I was on the verge of burning out myself, then I jumped out to an extended vacation. So far (4 weeks later) it did not do wonders, but it helps. It depends on the relation you have with your manager, but if you got burned out it usually means you don't have a good one (he does not care enough). If you continue working there is very little chance to improve anything, but try to work just 8 hours a day and disconnect the rest of the day and the entire weekend; I was working more than 80 hours a week, but my DBA was doing just 40 and the extra stress of these times hit him harder. Find a hobby that is relaxing and spend time doing that, but make sure it is relaxing.