Challenging yourself to do things when you are far from passionate about them,isn't something positive:it is pure torture.If you do it,get through it to the best of your ability,because regardless,it will be a learning experience.But challenge yourself to do the things that are out of your comfort zone,and scare you,when they are focused on something that will be positive for you,and only you.Do the things that make you feel like you are in over your head because they excite you,and because they make you feel like you are on the path to becoming the person you want to be.