Answer:
I have thirteen hearts but no body or soul.
I have a frame but no pictures. I have poles but not standing up. What am I?
I come in different colors and shapes. Some parts of me are curvy some are straight. You can put me anywhere you like but there is only one right place for me.
The more you take the more you leave behind. What are they?
Used left or right I get to travel over cobblestone or gravel. Used up I vie for sweet success used down I cause men great duress.
No matter how little or how much you use me, you change me every month.