I'm sorry you don't feel like your advisor is hearing you or helping you.
I encourage you to shadow at a day practice and ER practice if you can to see some other aspects of the field. A large animal or equine practice would be good to see.
What do you hope to do with the animals?
Do you want to draw blood, do cystocentesis to get urine directly from the bladder and run this samples through machines and by looking under a microscope?
Do you want to intubate, monitor anesthesia and perform dental cleanings?
Do you want to place IV catheters and administer IV and oral medications to patients?
Do you want to position and obtain radiographs for interpretation?
Do you mind helping keep the work place clean, talking with and educating clients, and restraining for exams or procedures?
Technicians do all that. Now how much they are able to do will vary on the state, area in the state, and individual practice.
Techs do a lot of the hands on stuff and it can be very rewarding.
Now if you want to do the exams and perform surgery you'd need to be a vet.
Techs can't diagnose, give a prognosis, initiate treatment or perform surgery. I've been a licensed tech for 11 years now and I won't work in a practice where I don't feel fulfilled and utilized or where I don't agree with the practice ethics. I do personally still want to be a veterinarian but I would also be ok being a tech. ( I have two kids, dog, cat, house, and some goats to complicate matters)
It is certainly doable at our age with the added complications a family brings with it but please make sure it not only is what you truly want but also financially feasible.
Here's a calculator to calculate life time earnings. Play around with different jobs average starting salary.
How much will I earn in my lifetime? | Calculators by CalcXML
Here's a calculator to figure out how long you'd be in debt and what you'd end up paying in the end. $300,000 in loans can easily turn into $500,000 when you include interest. Subtract this from life time earnings. When i did it with my current income versus starting at $55000 as a veterinarian the difference over a life time wasn't much thanks to the half a million I'd have paid in interest and loans.
Student Debt Center - VIN
If after crunching the numbers and discussing how you'd bring your family with you and the move is feasible then look up what classes you need for the schools you'd want to go to and get those. A lot of vet schools don't require a bachelors degree so check and save money by only doing classes you need.
You can look at the link with pre-reqs given in a previous post and also check the websites for the school(s) you're interested in.
I hope that helps.