Who here has changed careers later in life?

How young were you when you did? What gave you the courage to do so? Did you have doubts? I'm 37 without a college degree, and I really hate my job. I'm really burned out on customer service, I'm to the point of <DYING> to tell everyone one of the people I help, ';Kiss my @ss, and I don't care who you snitch to!'; Sorry, but it's very early Monday morning and I have to go back to a job which I really loathe. Did anyone here change careers without a college degree? What did you do? How did you do it? I feel like I'm too old to change careers, but for my own mental health, I have to find other employment.