Why "Never give up" is bad advice

When you were in school, maybe you saw posters about never giving up. Maybe you were encouraged to always achieve your dreams, achieve this big goal, or become this type of person. I think that a better phrase would be to try everything. Let me explain.

1. Not giving up might get you nowhere. I tried to get a job in a town about 25 miles away (I live in a very rural town) and the town was a small one. I went to EVERY retail and fast-food place and applied. I got interviews but not really a job. I got a job at one food place, but due to a company financial issue, I lost that job after only a week. Then, I got hired at another place, but there were too many things for me to learn in too little time. I realized that I simply could not get a job in that town and would have to look in a city farther away. I spent over a month looking for a job, but if I had stuck with jobs in that town, I still wouldn't have a job. I also think if I hadn't wasted my time there, I'd have had a job sooner and would be able to achieve a financial goal sooner than I will actually be able to. (It's affordably living on-campus at college)
2. .A situation could be made much worse. As ashamed and stupid as I feel about this, I heard in 2017 that one of my favorite Youtubers (who was only a teen) had terminal cancer. I tried posting comment about bullcrap cures (like go to this hospital, try juicing, etc). That makes a cancer patient feel like they gave up too easily and could just make one of the worst situations possible even worse for this. Again, if I hadn't wasted my time in that town, I'd have been better off financially.
3. Even if you can obtain a goal, it can lead you to too much stress. I finally found two jobs and, still thinking I could reach the financial goal I mentioned (living on campus). I ended up working seven days a week for five weeks. While I learned the value of a day off, I pushed through thinking it would enable me to live on campus. By the time I arranged days off with my managers, I found that was not the case. Even if it was, would I have the energy to study once I got back to school? Probably not. I think the best thing for me to do was wait a year to live on campus and relieve stress now.

This doesn't mean you shouldn't try everything to pass a hard class, get rid of your cancer if you have it, or your other goals, but the moral is to be realistic because if you're not realistic, you're just going to be disappointed.