What are you passionate about? Project management? Product? Problem solving?
Once you have an idea of the area you would like to work, in you need to think about what you will bring to that role - why does someone need you?
If you are non technical (currently) you might steer towards test, product, BA, marketing. If you want to be technical you will need to think about how you can achieve those skills in your own time - esp as it doesn't sound like you have any time right now.
Sounds like you cope with stress and pressure well - so that is a good start, but don't fall into another high pressure role just because you can. For me pressure and stress always have to be worth the reward.