I'm not a big believer that equipment is going to make someone a "better cyclist". You can't buy time, effort, and dedication. That said, CDR has a good point. If you feel that you are pushing your existing bike to the limits, then maybe an upgrade will help take you to the next level. You're a Cat5. Nowhere to go but up.

One thing I'll mention is do not assume that geometry is the same between different years of the same model or series. I broke my 2010 Felt F5 and got a 2013 Felt Fc as a crash replacement. By the numbers the geometry is very close, but on the bike it is completely different. It has taken me most of this season to dial it in, and it's still not where I was with the F5. Don't get me wrong, the Fc is a much, much better frame than the F5, but it is more of a pro fit, i.e. long and over the bars.