In my opinion the best way to learn a foreing language is living in the country where it is spoken and going for lessons. I used to study English at school, but when I really learnt it was when I spent some months in Ireland. Speaking at least one foreign language is so important nowadays!
If you are interested on coming to Spain to learn Spanish there’s a guide of schools in Valencia Region:

http://en.comunitatvalenciana.com/organise-your-trip/publications/generic-guides-region-of-valencia?k=3

Hope you find it useful!