Daz,
The best advice I have is to establish a specific time that is dedicated to practicing only. It's just the same as going to work at a part time job, a committment that you make to yourself. Eventually, using this technique, you will acheive your goal.
I do the same with sailing. I'm still not a polished sailor, but I dedicate at least one afternoon a week to sailing when the weather permits. In doing this, I'll eventually have the confidence I need to make that long voyage south to the Florida Keys, a trip of nearly 1,200 miles.
Good Luck,
Gary
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Travlin' Easy
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)