Nothing is better than Weight Watchers. Their website is:
www.weightwatchers.com
No I am not affiliated with them in any way, I just know they have the healthiest "diet" plan out there, sensible, well balanced, and with a lifestyle approach. Please, really try to lose weight the old fashioned way, the gastric bypasses have serious complication rates, and believe me, the restrictions on diet after the procedure are much greater than following a healthy diet on WW. IF you ever saw some of the complications after a gastric bypass, or watched people suffer and die, you would think twice about the procedure! And yes, their are successes, but the risks are definitely there.
Good for you for trying the dieting approach!