play the piano better

I got to UK grade 7 standard, which means I can cope with most of Schubert and Mozart but am way off the mark for Chopin and Liszt. I’d like to be competent in contemporary writing – Ligeti Etudes are fascinating but equally beyond my capabilities. Such a goal demands hours of practice. Where do you get that time when in full-time employment on the end of a one-hour commmute?