I am starting my journey also and my mother is the same as your's even though she is overweight herself..at least I am willing to do something about it...I went to a support group meeting and there were several people there whose mothers were also very negative about the sugery...you arent doing it for her you are doing it for you!!!! She needs to get over it...and when people see how good you look, you shouldnt be embarrassed at all...enjoy it!