Anyone broken free from professional life? Warning: rant

I've just handed in my notice on my office job. It's not what anyone would describe as "professional life", I've just been grinding out low level office and customer service jobs. I have tried to progress occasionally but it's never really come to anything and I've spent the past few years getting fed up of essentially doing the same stuff over and over. Increasing pressure on the public sector has just meant more stress, being pushed to do more and turn in longer hours for no more reward. To be honest, it's not the stress or reward that are the issues for me. However, losing time means not being able to spend the time doing stuff I enjoy or training for that stuff. It's just not how I want to live anymore and, despite valuing public service highly, I've lost my passion for doing it. I've definitely lost my passion for sitting in a dingy office, staring at a wall and shuffling information around in endless circles.

I don't really know what I'm going to do next. One of the problems of doing the same thing for 20+ years is that when you try applying to do something different, no one really wants to take you seriously. I guess I can understand that. Why risk a lack of capability and competence when even a bit of experience and the energy of youth is readily available without a 4 week notice period. I've decided that it's going to be either conservation based work or food production. There are volunteering opportunities out there where I can get experience and show commitment but mostly they occur during office hours.

So that's the plan really. Quit job. Get some work that will free up some weekdays to get some experience, get into doing something that doesn't involve sitting in an office day in, day out and hopefully will be able to get some enjoyment from