I'm currently learning Spanish and Portuguese and would like to learn Italian as well. The thing about it though is that I probably won't be able to take classes to learn the language (I'm already a doulbe major doing International Business and Spanish and plan to pick up a minor in either Mandrin or Japanese). So for this reason I am thinking about just learning the language on my own. I'm doing this with Portugues right now and have been pretty successful. But I'm not sure if that's simply because I'm learning Spanish in school and Portuguese is very similar to it. Is Italian similar enough to Portuguese and Spanish where I'd be able to learn it on my own? Thanks in advance!

I would like to learn both of these languages. I heard that a Portugese speaking person can understand Spanish but a Spanish speaking person can't understand Portuguese that well. Should I study Portuguese first? Will it be easy to learn Spanish from there? I don't want to learn both at the same time, I think I would become confused.