I guess what I'm trying to say is to find something that you enjoy doing, because if you enjoy it you will probably be better at it, and if you don't enjoy it, in 5 or 6 years time you're going to be going through the whole exercise again.
In 2010 I quit Insurance after 10 years and had a choice between a Pre-Voc Course in Plumbing or Carpentry. I chose Plumbing. I had always considered it, regretted not doing it as a Young Bloke and at the time I looked at it as a trade will never go away and that water and #2's have to go and come from somewhere, where as building demand comes and goes.
With 2 kids, a mortgage and other loans, The Bride financed it all for which I owe her forever. After about 3 months I realised I made a mistake. I didn't want to be a Plumber as much as I thought it would and ended up not enjoying myself. Being 33 at the time I was the 2nd Oldest Student there. The other Bloke was a Single Father of a 10 year Old at 45 and he used to be a Chef. We found ourselves in the same boat - regretting our decision. He went back to being a Chef and I floated around for the next 2 years having over 12 jobs trying to find the right fit for me. Job #12, the one I have now in Mental Health, was a job I had never considered and didn't think I had a chance at getting, even though I knew I could succeed at it. I've had it for the last 18 months, studying at the same time and love it.
I don't regret giving Plumbing a crack. It was expensive financially and got tough at times, but it made me realise I don't want to be a Plumber. If I hadn't tried it, I would've always had the "I should have been a Plumber" thought.
My advice as the above quote, have a think about what you enjoy, talk it over with the Mrs and maybe the Kids, and decide from there. When making an educated and reasonable decision, I believe it's better to have a crack than sit back wondering what could have been and/or regretting not doing it. If you chose the right path, there's no reason why can't succeed and have a huge house on a River, you can send a Chopper or Limo to pick your Mates up and get a sweet as Camper

All the best.