Hi. It sounds like you have been in nursing for about one year now. The first year is challenging, especially if you had issues with anxiety frequently in the past. Personally, I think nursing is stressful, although many nurses don't feel this way. Sometimes, changing to a workplace or area in nursing that is more suited to your interest, capacity to handle the stress or pace of the work helps. The longer you practice nursing the more expertise you acquire and the more likely, that you will relax and possibly enjoy nursing. Education is very expensive, so you want to be sure to consider all your options prior to leaving.
Having said the above, you should not consider how your friends feel, or judge you if you want to pursue another career. You have to do what is best for you, what makes you happy. I would give it another 6 months to a year, and if you are still unhappy, move forward and change careers. Imagine doing 40 or more years of something that makes you unhappy and causes you so much stress. Even if you earn less elsewhere, happiness has more value. Just my opinion, based on my own experience.