Quit engineering after two years to retrain as a teacher when I couldn't visualise spending my life doing my current career. Was a good job and all but just want ticking the right boxes.
Best decision I made in my life, the grass can be greener! Most days I cant believe I'm getting paid to "work" the hours might be long but they are all either fun or rewarding for the most part. And when I'm not doing a job I enjoy then I get some sweet long holidays. (True story, not trolling!)
Soo, jump ship would be my advice, life is to short. I did however spend over a year trying different jobs out at the weekend, calling people in different professions to discuss their jobs etc before taking the plunge.