Tired of corporate, wanting more freedom. WFH?

I work for a very big corporation and I hate it. I’m an electrician of 15 years working industrial maintenance, I’m not in an office setting, but I constantly have to hear changes brought down through corporate everyday, none of them are making my job anymore enjoyable than it already wasn’t. Everyday the benefits get less and less convincing to stay for. Everything has been going just fine but every single day it’s always some manager who comes up with some kind of change whether or not it makes things more productive or saves money it doesn’t matter. Salary people are viewed completely different than hourly. They take away overtime half the year, and the other half of the year before they blow budget they want us to work 24/7. And most people who take the step from hourly to salary hate it and end up on the PIP program after a year in their new position which makes me not want to take that step. Not to mention they arent even promoting inside the company lately. My coworkers are all demoralized and that makes them lazy, they complain all day and gossip about all the changes that are talked about every week. It’s draining and demoralizing me and it just makes me hate being inside these gates every week. I get 5 hours a sleep a night because I have to get up at 4am to start work at 6, so I rarely ever get a proper night’s worth of sleep. People are leaving constantly and the company just doubles down on the reasons people leave not being a concern to them. Oh, and the life expectancy for people retiring from my line of work here is like 5 years after retirement.

I’m looking for a new career. I want more freedom to work when I want to work. I have no problems working. I just have a problem with constantly being fucked with even though my job gets done ahead of time and properly. I can do anything and I have money to fund my way through any schooling or cert I would need to get. I’ll take a small pay cut. I just need something that doesn’t shit all over my lifestyle and constantly demands pointless things on my end.

I know this is probably a long shot, but I just want ideas. I can work on computers and learn anything. I can buy whatever I need to get training or setup an office at home. Whatever your idea may be, I’m open to it. I make 120k a year and obviously I can’t go down to 50k a year, but I would do 80k and struggle for a bit just to be happy. Hell, I’ll even consider going back to school even though I have 0 time for it.

Please feel free to suggest ANYTHING.