To get over burnout, you need a series of successes. Create small, attainable goals and complete them. Engineers in particular need a sense of accomplishment. This way you will look forward to you next endeavor instead of dread it.
Those easy wins then made it easier to focus and successfully complete a major 9 month infrastructure overhaul without any downtime(!), and while the sense of accomplishment from completing that successfully was huge (and the bonus wasn't bad either), the stress during that period was extremely high, and the resulting burnout was very real. A few months later, as that became obvious, I quit my job. It took more than 15 months off work before I began to feel even slightly recovered.
EDIT: and to tie this in to my other post[0], it's also worth noting that all I was doing during this period was "sleep, work, drink, repeat", which no doubt contributed to it.
It went great! But, it was very busy, and I couldn't hit pause because i was teaching a live class. Took me 3-4 months to recover, and I got almost nothing done.
I was running over capacity, and I knew it (I also knew it was temporary, which is why I did it). Yet it was anything but a failure!
I like the simplicity and elegance of that definition. It means work, pressure, "stress", pain, etc., are all completely irrelevant as long as there are enough successes over some interval of time.