some people are too afraid to resign from their jobs just because they think that now is a difficult time and they have to endure in order to survive. but i think it is foolish to stay in a place where you're not growing, you're not valued, and you're constantly under pressure. life is not only about surviving, but also about growing.
if you feel that your work pressure is so intense that even when you wake up every day, all you think about is how to get through the day without feeling broken, then that is a sign that something is wrong. just make the decision to resign. your health is far more valuable than the job. there is no need to worry that you will not find opportunities elsewhere, because opportunities will always be there for those who are willing to move forward.
You are right to resign if you are not well treated and valued in your job, or if you are continuously under pressure at work, but what if that is the only work that the individual relies on? Work is the only way to eat in a day, so I don't think anyone will apply for a job that will put them under so much pressure that they will not value their work. We live in a very clear and understanding world, so before you apply for a job, you should learn about the company or organisation you want to work for before applying.
If you have a job that pays your bills, don't think about leaving without having another. I know that no matter how hard it is, if you are destined to have a job right away, you will have one, but what if you leave your current job and don't have another job for another few months? It is difficult to get a job these days, which is why people always advise you to stay in your current job if you don't have another.