I'd class myself as a beginner, regarding technique and ability. Only really started playing Bass seriously about a month ago, coming from a background of 25 years guitaring, and some choir stuff as a youngster. So I would like to think I have a good ear, and a reasonable musical education. Have to say I've found this thread to be quite useful, and entertaining.
I'm currently focusing on very basic grooves, with and without drums. Seems to be a good place to start. Stuff that's totally locked in with the kick on 1, and stuff where my only playing is off beat fills. Whatever works, works. Good to see the "rest" being recognised as a beat in itself. Some of my favourite tunes have me bobbing my head most on a silence!
To the OP, I've always felt that we're never as good as we want to be, but almost always better than we think we are. Goes with the artistic territory apparently. Unless you're a *insert profanity here, not sure on the swearing etiquette here*
oh, and @ silddx. Really liked that track you posted Nigel, not my taste as such, but very good