Have you considered thinking without playing? This may seem weird, but I find that most of my practicing goes on when I'm not playing the instrument and I'm just thinking about it...
Last week I had a gig in a good venue in London, it'd taken about 10 months to arrange so despite having a heavy cold the week before, I couldn't cancel nor could I practice with a sore throat and all the other symptoms, so apart from a quick blow before I packed my horn (and Lemsip), all the practicing I could do was to think about what I was going to play. The gig went well, the trio played better than ever and we got paid £200...
I'm not saying that you shouldn't pracice at all, but I think it's omportant to think about what you're practicing and why you're doing it and have some reason to be doing it all.
When I bought my first sax I knew exactly what I wanted to do with it and have pursued that goal. As a result there's a lot I don't know about saxophone playing, not because I'm no interested it's just that there are only so many hours in a lifetime.... but there are also things I've discovered that few others are interested in...
I think it's important to figure out what you want from music (and life) and learn to explore it for yourself and develop the musicality within you.
Sheet music is just a map, it's not the real landscape and some aspects of music are un-map-able - those are the places that are the most fun to explore if you can get over your fear of dragons and falling off the edge of the world. If you don't explore, no one else will do it for you and you'll never know what you've missed. Exploration can become part of your practice, you can even do it with long tones...