The answer is hardly ever found in the acquisition of new gear. This doesn't automatically make you better. Why do you consider your Dean crappy? Did you not pick it out initially...surely you liked it then, no? Does it function? Does it play well? What steps are you doing to get the bass to proper playing condition? Start there, and work within your current abilities / capability, then apply some practice disciplines. Set some goals. Recognize what routes for practice work for you. Are you more of a sight reader than an ear player of vice versa? Ask yourself where you want to be with your playing and when you want to get there...instead of asking for a new bass for Christmas, ask for a book or a DVD on scales or theory or how to build grooves or what have you. And practice, practice practice. Alternating-finger hand exercises will help "get your pinkie on the fretboard" so don't shy away from that stuff either. You have to put in the work to build up your left hand...you just do. The hand cramping thing can possibly be resolved with wearing a strap while seated to hold the bass into a different position and take stress off your hand...sounds like your clamping a bit hard on the neck.
For me, I resigned long ago to the fact that I just am not a book learner on bass, it bored me to tears...I am more of a learn by-ear guy, and I copped licks and tone and song transcription by just playing along with the music I loved and then branching out of my comfort zone once my ear developed to the point where I could transcribe with a modest level of accuracy, without the music playing...
It's not about becoming Jaco at all. Jaco was Jaco, and simply becoming another Jaco, to me, is a boring road to take. It's about enjoying what you are doing so that you stick with it.
For me, I resigned long ago to the fact that I just am not a book learner on bass, it bored me to tears...I am more of a learn by-ear guy, and I copped licks and tone and song transcription by just playing along with the music I loved and then branching out of my comfort zone once my ear developed to the point where I could transcribe with a modest level of accuracy, without the music playing...
It's not about becoming Jaco at all. Jaco was Jaco, and simply becoming another Jaco, to me, is a boring road to take. It's about enjoying what you are doing so that you stick with it.
. I too have only been playing for 3 years & only have a 15 watt practice amp but, I have made it my goal to join/start a band. Keep at it and don't forget that this is one of the best resources of information