shape shifting (pvp)

Perhaps I'm doing something wrong but other druids do well some how. I feel as though shifting in and out of snares is useless against melee. Cause it seems that any gcd I use in trying to shift out of snares and not on a heal, brings me one step closer to death because the snares get reapplied instantly and I'm not gaining any distance either. If I try to tank damage with healing my self I still die anyway.

I don't think I am familiar with the art of shape shifting cause I am clearly doing something wrong.