E.P.
Do them all!!!! Yep - 18 months and my daughter jumped out of her crib! if the toddler bed is in her room, currently, try to transition her during her naps. As far as potty training - she may be a little young so introducing her to the potty, seeing her interest will tell you if it is time, regardless of whether she's pulling off her diaper or not. It's good that she is responding to "uncomfortable" diapers - big step! You could get lucky and have an early, easy training and buying her pretty frilly underwear might be her thing to keep her dry. However, see how she responds to the big potty first (with a small toilet seat over it). I'm still guessing she may be a few months away from being totally trained. Good luck.