Burnout and depression, are tough. I'm currently going through both and find myself asking similar questions.
As far as what to do with life "now", that is the greatest problem that you will spend a lifetime trying to solve.
while (life = true) { echo "what now?" }
## My Own Advice ##
For me, getting back to basics is my current pursuit (currently only a dream). I think our generation is generally accepting of the idea to live sustainable and detached from the economic machine.
It's ok to not know what the next steps are, take that as a sign that you need to slow down, reflect, and heal.
You are more experienced than you give credit for, but it's tough to see the entire picture when you are looking through a magnifying glass.
Find a mentor, counselor, or therapist to talk with. Heck, even a friend who has been through something like this would be good for you. Basically, get those thoughts out in the open so that you can hear yourself talk. Just by talking you will validate how you feel, what you think, and ultimately take steps towards feeling better.
Meditation helps. Recently I've developed for the first time in my life anxiety attacks that leave me with chest wall pain. I attribute this to recent events in my family, work, and trying to meet society's expectations. But, I have found that meditation has helped me bring some peace to my life. Gardening, sitting by a fire, playing with my dog, woodworking, listening to music, these are just a few of many things you can do find peace in your mind.
Too bad we couldn't grab lunch or coffee. I would enjoy hearing your story.