Noob here to add a little encouragement to the OP.
+1 on daily practice, even a few minutes is better than nothing. If sensitive neighbors or family members are an issue, plug in headphones to your practice amp or get one of the little headphone amps that plugs into your bass.
+1 on getting the right instructor. Mine corrected my hand position in the first 10 minutes, provides tons of immediate feedback, and really bugs me to study theory and practice scales/intervals/rhythms. He also models things on a second bass. Helpful.
Direction-wise, there are any number of self-contained courses that you can work through while looking for an instructor. I like the Hal Leonard Bass Method. The DVD starring Ed Friedland is great but moves really fast. The book has lots of exercises and little tunes. The CD that comes with the book is nice because it has more instrumental material for you to play along. It is cleverly designed to teach you important patterns, which I am starting to appreciate after 2 months of study.
Never stop doing something you enjoy!
P.S. Thanks to others for the links to the Scott Devine site and for the Music Theory PDF.