Question About Practising

Hi, folks

Maybe some of you know that problem: You're trying to plan what to practise tomorrow and what you get is a list of nearly 15 exercises, that will be taking like 9 hours to do, but it would really hurt to spare even one of them

In my case these exercises are some scale-runs, greg howe-style legato, 1-2 metal songs, a piece for classical guitar, jazz-improvising, the solos of "Hangar 18" and some other stuff as well

As i am a intermediate player some of this (howe, hangar 18) is really hard , so i have to start practising at half speed, which means that this stuff stays in my daily routine for at least months, causing less flexibility of my repertoire (for time reasons)

So my question is how to handle this smart without working my ass off ( which is always the easiest way to the top, i know )

Im looking forward your answers

Stay tuned !

PS: Browsing this site makes it much worse, because each time i want to add 23 other lessons to my routine (like some child and cute puppies in a pet store)