I made a mistake in my class creation, and realized too late. How do I use the 'enablestatreviewmenu' console command to change my class?

Using it will screw up your spells as well as your skills. I've never been able to use it without regretting it (never even bothered trying after the first year of playing). If you don't have more that a few hours into the character start over. If you have more than a few hours in, start over anyway; you'll certainly have figured out better ways of doing things.