I left for software development and am now working on a PhD in CS. It was the best choice I ever made. Being an actuary was a valuable experience though, mainly

I left for software development and am now working on a PhD in CS. It was the best choice I ever made. Being an actuary was a valuable experience though, mainly because I learned money really does not make you happy (as long as you have enough to live comfortably) and I won't be happy in a job where I do not feel challenged mentally. I also got really good at self-study, which has turned out to be an incredibly valuable skill.