Lots of schooling but it really depends on how far you want to go. My daughter is in the Vet Tech program in college (SUNY Delhi) and this is a two yar program. One of the things the school looks at are how well you did in High School in your Maths and Sciences. They want to see a strong B. She did not do well in Chemistry-she barely passed. So before she was accepted in the program she had to take a year of Liberal Arts and take college Chemistry. She got accepted after one semester because she carried a strong B and got an A- in Chemistry.