Its so funny that the things we really cherish when we are not drinking can be the most simpilist things, like you said being able to drive your mum about. I love being able to wash & dry my hair without 5 minutes later being drenched in sweat, i also spent the whole day with my mum without wanting to leave her so i could get drink. Im 8 days sober.
I hated myself before, now i sort of think im ok, drink robs you of everything, evntually yourself.
Get help as much as you can, knowledge is power the more you learn about yourself the better life you'll live. Good luck, I know its hard, do it for you.