The only thing thats really made me learn anything special about my game is studying my game and talking with other players (especially andy-akb and biondino). A few one/few liners of my own that ive noticed at one point or another...

Treat one liners as guidelines, not as crutches. Use them until you find your feet and then move past them.

Varience is much bigger than beginners think it is and much smaller than regulars think it is. Every single time Ive been hit by varience and gone into a downswing Ive looked at my play and realised im playing badly (usually too weak/passive brought on by downswing fear).

Make some FTR instant messenger friends and talk through hands/sessions/life with them. It helps alot.

Worry about making the most out of your common situations. Spend more time figuring out when to fold / push with top pair and less time worrying about folding KK preflop or maximising value with quads.

Limping trash in the small blind is more expensive than it looks.

Position is MUCH more important than beginners think.

Small hands for small pots. Big hands for big pots.

Preflop you need at least a Good hand + Bad position OR a Weak hand + Good position. Dont play a hand without at least one of these.

Make sets get paid