Can’t do a lot of jobs because of my fear?

So I’ve had a severe fear of heights for 15 years now. Anything a couple of stories above ground I don’t like if there’s a drop. It’s seemed to have gotten worse lately. I don’t like trying new things as much or things that I deem risky. Even applying for some office jobs that I’m not sure how the lay out is inside I’m worried just in case. A lot of outdoor jobs are out of the question. There have been some jobs I’ve turned down because of this. I used to be ok driving over bridges but now I’m too worried to try again. Also I used to be ok on planes but now I’m not sure although I’d be willing to give it a go. Even going up a hill that wasn’t that high I was worried incase there was something on the other side. I don’t know how I can live like this. I’ve tried hypnotherapy and therapy but not exposure yet. Anyone in a similar boat? How debilitating is this phobia for you?