I'm recently on a kick to take my fitness more seriously; for me that means a three month stint with a personal trainer, bringing in a dietician soon, and planning on rounding out with a running coach.
As a note, all of this isn't that expensive - its just coming out of most peoples holiday and expensive treat budgets.
Doing it like this means you consult with real experts, who will tell you what you're doing wrong that you didn't think to ask about.