Kinda the same, I spent most of my late teens and 20s in a variety of admin, finance (book keeping/credit control kind of level) and office management roles. Didn't really like any of it, I found it a constant ordeal, but because I was basically competent at it, I assumed it was 'for me' for years :/. 25-30 I basically burned out and was a bit of a waster....temping (I temped for ACCA funnily enough :P ), benefits, playing in bands ect.
About 30 a court politely suggested I help out with some community projects and that got me out using my hands again and learning practical skills, a few jumps later they'd got me a job with my local council as a garden maintenance guy and it was an eye opener. Sure there were some brutal shifts, nasty weather, crap pay...but in terms of what i'd done before it was so simple and satisfying, not a job i need to take home with me or dread the next day, no office politics, (Helped me get back into good shape as well, working out is far easier when someone is paying you.)
Did a few of those contracts and bit the bullet and decided to go back to school, that and a driving licence were the two things really holding me back so i was able to get on a college City & Guilds Diploma, loved that. and that opened up access to HNC/HND then Uni. Definitely one of the best life choices i've made, even if it has killed my income for a wee while.
I can still just about remember what having a job i hated was like, it drained all joy from my life, the alarm clock made me want to cry, finishing every shift and thinking 'god i need to work tomorrow', finishing every Friday night and thinking the same, having a two week holiday and spend all of it staring at the wall in dread of going back to work *shudder*