Well, contemplating a completely new career, a change in direction, is exhilarating. You can reflect on what values drive you, what goals those values might engender, and then what interests/directions you could go to fulfill some of those goals and be true to those values. You mention Park Ranger as something that floats across your mind ... do you value the environment? Preservation of wilderness? An outdoor life? Ecology? Animal welfare?
If I'm way off the mark, you do know what's 'on the mark'. I'm sorry I don't know you well and can't be very accurate in what I suggest, but it's an energizing thing to contemplate (bit of an oxymoron: energizing contemplation
).
So ... what core values would you want to live out in a new career?