While I have experienced the same, I'd likely see about finding another job within the same industry. Unless you have a non-compete clause in your current employment arrangement, why not go work for a competitor that may have a better work environment?

However, I would add the cavaet to make sure you know what it is that you'd love, want, and need in a future work place. Do you need flex time? Do you want lots of parties? Do you want the company to be on solid financial footing? Those kinds of questions that will happen narrow down which companies make the cut.

Another approach is to bring up your various concerns about the work environment to your manager, assuming that you can do this in an assertive manner without worrying about retaliation as there is the potential that the management just doesn't know better and educating them can yield good results.

I've had a wide array of experiences, terrible and great jobs. My current job is one of the best I've ever had.

Sounds like your job sucks.

Looking around is scary and there's a lot of ways to rationalize doing nothing.

If you're looking for people to give you permission or encouragement to look around, consider this it.

I have that situation also. We used to be a commercial software vendor in a niche market. Over the last couple of decades, we got acquired (repeatedly) and are now owned by a major federal contractor. Corporate forces us to run our software business according to federal contracting policies and procedures. Talk about shoving a square peg into a round hole! They're gradually running us out of business because they don't understand what we do or how we bring the money in. They have no idea about business terms like "market share", so when we lose customers they're like "oh well". It's pretty frustrating.