I'm a lanky 150 and went to BJJ for the first time in a while today. During rolls I was hoping to take it easy, pull some guard, be patient, etc... Went up against big stronger wrestlers and they just kept trying to crush my head and back by picking me up while I had guard and smothering me downward almost to the point when my feet were touching the ground behind my smothered head, and with raw strength locking of my head when they had side or half guard. How do folks deal with this stuff from a technique standpoint. My neck and back were all jacked up and while neck cranks and uber agressive smothering aren't exactly friendly moves, I feel like its my own damn fault for not having enough abilities to avoid or get out.