I'm sure there've been dozens of threads like this, but I think mine is somewhat special.
I've been playing for about 9 months. I have enough strength to hold down the strings and I use 4 fingers on the fretting hand. I can move pretty fast and my stretching is wide (From the 1st to the 5th fret easily).
Problem is that even though I feel like I can play anything I try to, it always sounds bad. Fret buzz although the guy in the music shop played on my bass and had no buzzing; I'm holding down the strings with all of my might. :|
Also, I miss notes too often and my slides sound like poop (buzzing again).
I have no idea how to get better, I'm playing everyday and I feel like I'm stuck in the same level I was 3 or 4 months ago and don't progress.
What can I do?