Well first of all a huge congrats on your loss so far with dieting!
I know exactly how you feel about being embarrassed around family events. My sister in law tends to be the rude one lol. This is part of my own motivation to keep going.
Fasting is difficult and temptation is always there... but it can be done! The first 3-4 days are the worst, and then it's only a minor waver in resolve here and there.
I wish you success. And please keep posting on how you are doing! =)