I quit in 2011 to become a teacher. When I got to the top of the pay ladder as a normal teacher (now 44K) after 9 years of graft and a training year, it still wasn't as much as I earned in 2011 cleaning bird poo off windows. Worse financial decision of my life. I wanted meaning. Trust me, I learnt so many skills I never would have, but got a butt-load of stress. The first day in the classroom learning to be a teacher on 1st September 2011, the sun was shining, the birds tweeting and I was stuck inside. I knew I had made a dreadful mistake. I had sold up though and used the money to fund the training year.
I've only really over the last year or so owned up to myself I made a big mistake. I used to start at half 8 unless I had a commercial, finish at four and always had money in my pocket.
Trust me, school holidays in no way compensate for the stress and hours you put in in the school year. If I could turn back time.
Starting from scratch now. Don't do it unless you can equal the money and the hours.
My mate is in IT and earns what I would be earning if I had stayed on the glass. But he has stress on another level. I would have one or two blokes working for me and be chilling if I had stayed on the glass.
Don't do it. Braindead yes. Get a hobby, join a club, retake maths GCSE, use your brain outside of work. Learn a language. Don't depend on work to stimulate you. Most jobs are braindead after you initially build your skill set. Even teaching was just the same old crap after a few years, your brain soon sends the task to your subconscious and automates it and you just plough through in a state of boredom.
Don't quite the glass. My opinion of course. Other outcomes are possible.