Is underwater welding really dangerous?

I might sound like an idiot which is ok, but I am scuba certified and love diving

I am 20 years old and trying to figure out what the heck to do with my life- I went to college for a year and decided it wasn’t worth it. I am a line cook now, and while I can make enough money to live I want something bigger

Even if I scrap the whole underwater welding part is welding as a career worth it in your opinion? Like I said I am just trying to find something and I am starting to get worried i won’t find anything.

If it matters I am located on the east coast of the United States