moving is all messed up

when i started playing i could move around correctly, (the character given to me at the start) then after i made changes in the landscape and such the arrow keys became all messes up and they keep on changing. like left became forward forward became right or back, all messed up and i dont know what i did to make it like that, isnt there a place where i can put in how i want to move?

You can go to Edit->Project Settings->Input and change all your input settings from there. Reset option is available, so don't afraid to play with the values.

If the above won't solve your problem, try removing your `First Person Controller` and re-import it from `Standard Assets`. Keep a backup of your project if you did something special with your player before removing it.