It won't solve all your problems, but in my experience it is better to be careful with what you say to co-workers. I have been employed at a range of workplaces and there are always some colleagues that love to go "tattle" on you to the boss. My last workplace was full of people like that. It felt like junior high!

From what it sounds like, you work in retail? I've done that in the past, and it definitely can be stressful, especially if you have to deal with rude customers. In my experience, there is a lot of variation between different companies and some are less stressful than others. Can you try and find something in retail with a more relaxed environment if you want to continue in that line of work? Or , could you could return to the work you were doing before? From everything you read, businesses are having a tough time finding enough staff. It couldn't hurt to see what else is out there.