I just reached my goal I made last month to reach a 6k bankroll. Ive been playing the best poker of my life but I know theres alot to the game Im missing. Before I move up stakes (playing 200NL right now) I wanna improve my game. I have been playing 6-max NL my entire poker career and have never been successful anywhere else. Whats the best way that some of you have found to do this. Heres a couple ideas I have:

1) Write out a full strategy.
2) Start using a live stats hud.
3) Review hands after each session.
4) Review stats (Pokeroffice) after each session.
5) Start playing some NL Full ring games.
6) Start playing some limt Full ring games.
7) Start playing some short-handed limit games.
8) Read a specific article.
9) Read a specific book.
10) Play a specific style of poker (Try to win playing a LAGG style, etc..)
11) Keep a full poker journal of any difficult hand.
12) Play in some live games.
13) Start playing Sit-n-goes or MTTs.

Those are the ones I think of. And before you say do them all, I dont really have time to do that. Im more looking at whats the best time to result ratio.

What do u think? What has worked well for you?