Weight Back On

Well - I'm trying to redeem myself by doing a protein day today. Not sure if it will work at all. I've gained 16.8 lbs of the weight back in P3. I'm very disappointed in myself and am going to do a cleanse right after my surgery and try and stabilize where I'm at. Not sure if that's even possible. I should've, would've, could've done a steak day when this first started occurring. From everyone I've talked to - the smoking increased my metabolism so - it's slowed down and the weight WHAM - came right back on. I'm depressed about this and don't know what to do - the next round is so far away! Any suggestions would be helpful! I'm not only frustrated about the weight - but frustrated that I have to wait to strart again. I now understand those that have gone into P3 and had a difficult time of it. I feel stupid above all and just want to cry! I'm angry at myself too!