Had Lap band 3 weeks ago going for my first fill in a few days. Quite hungry only lost about 8 pounds. Have I failed?

definitely not! You are still in the healing stage and cannot expect to have restriction or much weight loss just at the moment. Hang in there nd keep following your Dr instructions and success will follow.

Had Lap band 3 weeks ago going for my first fill in a few days. Quite hungry only lost about 8 pounds. Have I failed?

Of course not, you are healing and will have a good appetite now till u get some fills under your belt. I am sure you must have been told this isnt a fast weight loss surgery so be patient and follow the rules things will start happeneing with a few fills