[tonyw]

The computer science degree is a good idea because it gives you a fall back plan.

I will say that having any kind of degree is a good idea. My first degree was in psychology, and just having that allowed me to check the box for a wide range of jobs.

And relax about the checkride. By now, you know the stuff well, right? So relax, just touch up to keep it fresh, and don't stress too much about it.