My last challenge was to increase my single-tonging speed. I've worked on that and feel a lot better than I did a month ago. Now, I'm continuing to work through Arban's, but feel like I have so many things to improve upon, I can't figure out how to organize my practice sessions.
I've been doing about 15 minutes of single-tonguing practice followed by 1/2 hour from Arban's and then another 15 minutes working on memorizing some standards.
Any suggestions? This would probably be a good time to get a lesson, but I can't afford to consistently go, so I've been putting that decision off.