don't chase the full feeling. You likely won't feel it at all this early out because a) you had some nerves cut during surgery, and it takes awhile from them to regenerate and b) most people don't start feeling any restriction until they start on solid foods. Even after everything is back to "normal" ( whatever "normal" is after WLS), for most of us, "full" is different than it was pre-surgery, and it takes awhile to recognize what your new "full" cues are.
in the mean time, measure out what your clinic says you should be eating and only eat that. Don't wait for the "full" feeling, because it's not going to come for awhile, and when it eventually does, it's going to be different than it was pre-surgery.
P.S. unfortunately, the surgery fixes our stomachs, not our brains. If you're having trouble with binge eating, therapy may help with that (a LOT of WLS patients go through therapy - at least for awhile - to help with food addictions)