Which level of rosetta stone?

I took italian for four years in high school but I am not really good in it, especially speaking. I know how to form sentences and I know kind of a lot of vocabulary. I want to get rosetta stone but I don't know if I need all of the levels. What kind of stuff is on each level? Should I get level one or will it be pointless and too easy? Should I just skip to level two? I just want one level for now because of money.