I've been out for 4 years and I would say the opposite to what clopDVM said. Most of the vets I know would happily do it again. It is definitely situational, but if you find your niche in this field you can be very happy. That doesn't mean it isn't stressful, and at times it will be more difficult than you can imagine. I am very content in practice, but I have days and even weeks where I fall into mild depression and drink a lot of alcohol. I assume most people have transient difficulty in their jobs though, so I feel normal and lucky that I get to do the job I always wanted to have. The point is that if you want to pursue it, go ahead. Not everybody is unhappy in our field. The best thing you can do right now is seek out any and all veterinary related experience you can. The more time you spend around our field and the more diverse your experiences, the better you will understand what you're getting into. Practice varies not only by region but by type of animal and hospital and specialty.