Work is an inherently ego driven, protection from death task by stacking more human and capital cost onto the problem of death. You can find friends in that, but it's not a stable social relationship.
You're not burnt out, in the sense that you got burned. You seem to be handling that fine (write down your conflicts though!), it seems more like you ran out of fuel for the fire. The sparks are still being created but there's nothing to burn.
Get into the 'why' behind art, the symbols, the inspirations for techniques, it's a great indicator where other souls found fuel to burn. Find another part of your life that gives you enough fuel input to start a new fire. Snap a branch off your culture's hierarchy or history and use it as a second stick to your own stick and start a brush fire. If you're single find something your lovers want burnt off.
I think you're starting again with real skills and experience this time. If you're the kind of guy that needs to be burning, all the comments about the cycles of business, numbers, money and all that are not going to work for you.