I wouldn't buy any more equipment until you've gotten your mechanics down a little better. 4-5 months isn't really that long a time frame.
After your timing smooths out, you will probably want to use 15#.
Me, 120#, 15# equipment. I've tried 14# but tend to throw it thru the breakpoint.
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~~~SrK - Have balls, will travel
1st law of combat, "Bullets always have the right of way"