Would learning French and Spanish at the same time be hard? Also, trying to relearn Serbian?
I would strongly suggest getting a software computer program, as they are the most engaging and effective way to learn. Books are good too, if you don’t have a computer. Here are some options I’ve personally used, spend some time looking over what they have to offer and if you feel you would work well with it: Software: http://www.amazon.com/gp/redirect.html?i… (I’d suggest getting levels 1-5 if you can afford it, otherwise get 1-3) http://www.abclearnlanguage.com/url/fren… (this program is basically just like Rosetta Stone, but much more affordable.