@FutureVet96
Here's what I did (current first year vet student):
-I had about ~2000ish(? maybe more?) hours of training, riding, and working with horses at both a therapeutic riding stable and in hunter/jumper and eventing scenes before ever starting undergrad.
-I did not do ANY vet or animal related stuff during the school year. And frankly, if you can avoid it, I would suggest doing the same. School is busy enough as it is. I started working at a vet's office the summer after my sophomore year (though I suggest getting an earlier start on that if you can- like this upcoming summer, or winter break or something). The summers after my freshman and sophomore years, I also volunteered more at that therapeutic stable.
-I worked as an RA for the three years following my freshman year, which is part of the reason I didn't do any vet stuff during the school year. Being an RA at an understaffed university meant 30+ hour weeks of RA work outside of classes quite often, many sleepless nights, and missing study time the night before many, many exams.
All in all, I ended up with a respectable amount of hours, but by no means the amount of anyone that worked full time as a tech for many years. My suggestion is to focus on school when you're in school, and then just to cram as much experience (and
varied experience, most importantly) into weekends you're free (pick up volunteering at a 5k here or there) and especially your school breaks. Any smidgen of hours you get counts!