I am an economist but I love mathematics. Everything depends on the teacher* and how much versatile you are. According to your story you are a lot. So start from the basic maths, the one we have been teached at schools and do as many exercises as you can. There are many books about "funny maths" and quizzes with numbers. You need patience but it worths!!

* My mathematician at the third class of high school was very strict and a little quaint. Any time we dare to say the word "maybe" , we had to stand up at the back of the classroom as a punishment. He was saying that we have to be sure for everything we tell about maths. But he was the one who makes me love maths.