As someone who went back to university three times I can vouch for the fact that it gets harder each time. The first time I worked 5 years between going and the second time I worked 2 years. Each time I went to a different university. It is interesting to see how each university has it's own "personality", so it is perfectly reasonable that UT is not the right fit for you. When I attended the University of Calgary I realized that was not what I wanted and the school was not a good fit. But the other schools were a much better fit for me and I finally found something that I enjoy doing.

So do what you need to do to finish out the semester. Recoup and start up with the vet tech certification. The one suggestion I would give you once you finish the vet tech program is to continue taking classes, even if they are cake decorating or dancing (they do not need to be related to what you are doing). This will keep you in the "habit" of attending a class.

Good luck with things and the semester is just about over!