I was waved away from bread because it tends to ball up and plug the pouch, which I eventually learned first hand. I don't recall how long I waited, or waited after discovering the reasoning was true for me. I've since learned to sip a bit with bread to thin the resulting paste.
Raw veggies, like salads? Never been much of a fan, so don't remember how long I left it alone, but I don't think it was an actual rule, at least not one I recall now. I eat the occasional salad, but not in normal rotation.
Alcohol, I have to believe there was a prohibition of some length, but again, too long ago to recall the specifics. I don't believe I drank until I lost all my excess weight. I had pretty much abandoned alcohol years before surgery as I tended to binge, well, everything. I've had alcohol since surgery, it goes to my head quicker than pre-op, and if I drink over much the hangover hits quicker and ends quicker so by morning all effects have passed. I really only drink now on vacations with fruity drinks during the day and after dinner cognac.
Good Luck,
Tek