I never knew this was going to be so hard, the whole pre-vet journey and the preparations needed. I've realized that I'm going have to take at least 19-21 credits a semester and at least three or four science courses a semester. I've managed to volunteer at a vet clinic/animal hotel on Saturdays, and I feel that's eating my time for studying and homework. As I'm preparing my schedule for the years to come, I start to feel uneasy lol. I'm a little hesitant on summer courses because of the money situation I'm in, but from here it looks like I will have to take some, unfortunately. I know this road wasn't going to be easy, but actually living it and participating in it first hand, I've come to the realization that maybe I overshot this one. The pressure is real and I feel like I'm too young to stress out like this lol. I'm scared that I'm going to burn out and really overwork myself. I just don't want to see my hard work seep through my fingers.
Any advice? How did you guys get through or going through undergrad?
So, my first piece of advice is to really sit down and think about your schedule. So, maybe I have just had a very different experience than everyone else, but there shouldn't be much of a reason that you would need to do 19-21 credits a semester in order to be able to get through undergrad for pre-vet. As a double major, taking every pre-req, and fulfilling BS requirements for the bio major and 30 credits for a BA in music, I came out to average about 16 a semester (first 6 semesters with 97 credits). This may be part of your problem... If you would like any help with trying to format schedules, such that they are more manageable, feel free to shoot me a pm (I am pretty decent at it given that I have been working through the Dean's office as a pre-vet adviser for the past 2 years).
With regards to taking a lot of science courses during a semester, I personally believe that this is something that every undergrad pre-vet should do. Granted, I think you probably would not have to do 4 every semester with proper planning, and I believe that doing something non-science in undergrad helps to keep you well rounded and sane, but you have to understand that once you are in vet school, it's going to be full throttle science. Thus 3-4 science classes shouldn't be the worst thing ever, even though it can certainly be difficult!
With regards to summer courses, I feel that they are occasionally necessary, but moreso when your school doesn't offer a class/offers it only during a non fall/spring term. Its honestly not a horrible thing doing a class or two over the summer, the costs associated are a drop in the bucket compared to other debt that is being accrued...
With regards to volunteering, I would say keep doing what you are doing. The good thing about your situation is that it is just that, volunteering. There isn't a mandatory thing that you go every single week like a job would be. If you have a crazy ridiculous week where you feel you need to study instead, then you can take off a week there. I think it's a good situation, and if you do this in combination with working/volunteering at a wide variety of experiences over the summer, then I think you should be more than fine in terms of experience.
My final piece of advice is to do stuff for you. If you are a big outdoors person, set up time each week to go on a hike. If you are big on sports, give yourself an hour a day to pay your sport of interest. Whatever it is that you are into hobby wise, make sure you devote sometime to that. It will honestly help you from burning out and will keep you sane
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Other than all of this, just don't stress. You are at the beginning of your vet school journey right now, so no need to build up all of your stress now. Trust me when I say there will be lots to be stressed about later on, so the less stress you are under now, the better...