We humans are shallow bunch, statistically good looking men end up with good looking women at the start, but later they opt for realistic personality financial purposes or a combination of this, but this is usually not the case. Don't be too concerned, physical appearance is only one aspect to being sexy, personality, people skills, money(let's be realistic here people) and general confidance counts.
My cousin is an expert in picking up which I hate because all he is interested in is just sex, all women fall for is crap and he isn't exactly good looking, he is though psychically active and an expert in martial arts. Is method is simple but might be hard for others because to him it to comes naturally, he makes them laught and shows genuine interest in them, he is not shy either, all relationships starts from friendship.
saying you are ugly is according to social standards today, back in the black and white days women with a bit of meat were considered the sexist, today it's tooth picks and skeletors with fake bits, in my opinion the standards today are too harsh. the think is you can lower your standards and improve any aspect psychologically and physically.
One more thing, call your mum a rusty wrinkly old cow when she is in her 60's.