I think they both work but it's really your mind that will f up later on when you decide to eat those cookies that you shouldn't have your mind is the trigger seriously! (btw you can't eat a lot w gastric bypass) I have 4 friends that had the gastric sleeve and only 1 has a healthy weight , the other 3 are probably bigger than when they started. My aunt had the gastric sleeve and she is eating a lot so she has gained a few lbs after a year. I only got the RNY cause I had acid reflux but I feel I made the right decision. It was a smooth transaction for me. Now one of my gastric sleeve friends wants to get a revision after seeing my results but I really think she needs counseling cause she is drinking a lot. She has addictive ways. Anyways lady...I would recommend watching videos. I followed a lot of people on YouTube and it helped so much preparing and seeing what they went through during each phase. Good luck!