How hard is it to learn Japanese ?

Im 14 and in grade 9 ! I have to choose a foreign language this year to do ! i did a little french from like 3 to 7 but very little until grade 5 and 6 ! Anyway Im english and I love anime I sing along with the theme songs in japanese i get alot of the words right I love saying things in asian ( chinese , japanese etc ) but how hard would it be Im really into everything asian or from asia I love everything about China and japan ;) should I try any advice ? I want to visit there some day ? thanks alot !!