I totally understand you. That was me.
My parents would be embarassed if I did not go to Uni because EVERYONE else (exaggeration) did.
I did my best but I had a hard time. And to be honest, those "few" people that did not go to uni are today FAR BETTER OFF than myself. They started to work earlier, they have far more work experience than me, and all I have is a diploma and lot of unapplied theory.
Your mum so sounds like mine. I'm 31 now, finished degree almost (gosh) 10 years ago but I remember it all too well.
You already had lots of good advice here, so I won't say more. Keep in touch if you need to chat or something I'm here.