I really love how positive the people on this forum are! I know what you mean about other weight loss forums.. some people there are just plain rude!
You are doing AMAZING! Just because you slipped once does not mean it is the end of the world! Great idea to eat the pudding/jello instead of ice cream. When I am craving something sweet I usually chew gum or eat a sugar free hard mint. Helps me... I am not a big sugar person.
When I started I needed to lose 100+... now I only need to lose about 30 pounds or so but it still seems so far away.. It is totally all in your head. Make mini goals for yourself. If you are working out hard I bet you will see a big weight loss drop soon! It may also be muscle?
You may also benefit by using a tape measure to measure yourself instead of the scale... Keep up the good work!!!