I need help with a cover letter

I haven't done any writing at all in a year or 2 since I took english in University....so I'm having a lot of problems. I'm sending in an application for a school for a vet tech program.

Anyway, I have really no ideas! I have some started, but I'd rather not post it on here...maybe I could PM someone with it.

I basically put that I'm interested in the course because animals are my life etc. I put experiences I had such as working in a vet clinic, HS volunteer work, as well as the farm I worked at. I'm not good with introductions or endings..haha. D:

I just did a search for resume cover letters the other night on Google. I found a lot of good examples to get me started. I just customized it from there.