No. Si quieres aprender español para comunicarte con otras personas, aprender latín no lo hará mas facil. Pero si quieres conocer el orígen de las palabras españolas (y portuguesas, italianas...), entonces el latín te ayudará. No. If you want to learn spanish only for speaking with people, to learn latin will do not it easly. But if you want to know the origin of the spanish words, then latin will help you

No, definitely it won't make it any easier. Spanish is way too simpler than Latin. See: the later is a flexive language, which means its nouns and adjetives have several declensions, whlist the former does not. That makes a great difference.

I don't think so. It has a lot of similar words, but is not the same.

I think that Spanish is much easier than latin, it is close to French, Italian and a little bit to English.