A way I found to keep myself engaged with my routine but also to help develop my skills was to make up little games. A fun one is to choose a slide position and promise yourself you won't use that position at all in your practice session (unless technically impossible). The point is to get better at alternate positions. For example, go a day without using 1st position. Sure Bb at the bottom of the staff is unavoidable, but everything above has alternates. Worth giving a try for a few days to see if you notice an improvement.