I agree with Carol O about there not being a single, standardized answer to your question. I expect there are a LOT of factors that will influence the healing process.
if your question is stemming from your own personal experience and situation, then the fact that you're aware of feeling burned out means you're facing the right direction to allow healing to start. And yet, it also sounds a bit as though you're feeling somewhat "scorched" and/or this has been going on for quite awhile.
As I sit with your question, an analogy with "getting out of debt" comes to mind. It's one thing to pay off an existing debt and quite another to cut up the cards and/or avoid creating new debt. Likewise, it's a really wonderful thing to add bits of self-care to our schedule and a whole 'nother thing to develop a different way of "being with" the stressful situations that caused the burnout.
Either way, I hope you can discover ways to be compassionate with your own need for healing and respite.