It's a great idea to set up a practice routine - you can waste precious time on unfocussed practice. Though finding what works best for you takes a bit of time.
I try and practice every day if I can for 1-2 hours after the kids are in bed. Initially found I was trying to do too much 'study' and neglected to have fun with it, after all as a non professional musician that's what it is about for me.
I've scaled back on the the things I've tried to learn and now have this structure
- Quick Warm Up (~5 mins)
- Focus Areas (~30 mins)
this rotates depending on what I want to work on. Currently I'm working on right hand technique to build speed.
-- Study Pieces (~30 mins)
A few songs I'm learning that challenge and push me, this includes analysis of how the bass lines are constructed, playing technique etc.
~ Band Pieces (~30 mins)
Time spent on learning new songs or cleaning up my playing on current setlists.
If you can afford it consider signing up for Scott's Bass Lessons - lots of good material on there and you're encouraged to create and maintain practice logs.