any idea how hard chinese is to learn?
much worse than spanish/french/italian?
It depends which language. Cantonese it more difficult than Mandarin because it has 6-9 tones depending on who you ask.
Mandarin only has 4 tones. The trouble is that since Chinese is really sounds/tones rather than distinct words, the listening comprehension takes some time. Memorizing characters takes time but is not very difficult, it gets easier as you go along.
If you really want to learn Chinese, the best thing to do is to go to Taiwan or Mainland China for some time.