You're being exploited. You've been worked to your limit. You probably share some blame in this but you're certainly not the one profiting from it so the key thing is you need to stop for a minute.
You need a break to re-evaluate. At least two weeks without work before you even bother trying to sort through important questions like who you are and what you want. Once you've relaxed, you can start to ask the heady, existential questions that it sounds like you've been putting off for a while.
Try asking for some extra vacation from your employers. If they won't give it to you, and you can afford it, ask for unpaid time off.
You need a break to re-evaluate. At least two weeks without work before you even bother trying to sort through important questions like who you are and what you want. Once you've relaxed, you can start to ask the heady, existential questions that it sounds like you've been putting off for a while.
Try asking for some extra vacation from your employers. If they won't give it to you, and you can afford it, ask for unpaid time off.