Welcome Pat,
Though I have no idea how old you are, I would tell you exactly what I tell my own sons (18 & 21), which is don't put all of your eggs in one basket. Get your college education, and after that's out of the way take a close look at where the appraisal profession is, if you're still interested. In spite of what many think is a short and easy education that will quickly reap big bucks, DON'T BELIEVE IT!
It's difficult to predict where the this biz will be in a couple of years, but right now would be a tough time to come in at an entry level. The odds of you being able to find a mentor when work is slowing for most are definately against you. Without a supervisor, you go nowhere. Even if you find a supervisor, if they're slow you won't get much work and it will take at least as long to get fully licensed as it would to get a college degree.
Please take the time to read through the informative threads in the Newbies/wannabes section of this forum and feel free to ask any questions that you might have. You'll get helpful and well informed answers from most, even if they're not all sugar-coated.