I took Spanish for three years in high school, and I was really good at writing and reading the language. But its been 6 years since I graduated from high school and my Spanish skills have diminished greatly. Now I feel like I should not give up on what I learned and polish my language skills. What is an easy way to do that with out spending hours online reading stuff since I am in grad school? Any help is appreciated.

I'm thinking of living in Mexico for a year to learn Spanish.

I'll be alone and I want to live in a small city or town near the ocean (either coast).

Has anyone ever spent a lot of time in a place in Mexico that they can recommend to me? I've done a lot of traveling and can handle myslef -but safety is a concern since I'll be alone and it will take me a month probably to get my basic conversational Spanish skills up to par.