Does anyone know if we will need textbooks that we are currently using in the future? I don't want to sell my books and then find out in 3rd or 4th year I need the same one.

Depends on the class, but usually no. If you are taking a similar class in the future and have an expensive textbook, look at their book list just in case

how would I find the book list? dont they change every year

There are only 3 books I've bought that I've needed later, none of which are first year textbooks. Get rid of them as soon as you possibly can. You'll be desperately fighting with hordes of students to get rid of them like they're illegal drugs you don't want to be caught with.

haha got it. Thanks (: