You sound like me about 3 years ago. Look at it this way--lot's of people have degrees and jobs and houses, etc. Not so many people have hiked LD trails. I am filled with regret at taking the job instead of the adventure. I needed a sense of purpose at that time in my life so I opted for security. Looking back, all I can think is where would I be now if I'd truly followed my bliss...security seems overrated when all I can think about is the trail.
Don't let age be an excuse--you are still so young. Degrees and jobs are important but only as important as the life skills/experiences that back them up. You've got this--get out there and hike!