What is a "nit"?
In poker, a nit is a player who is extremely tight. A nit will only engage in hands in which they are almost certain that they are ahead.
For example, a nit may only open raise with hands such as QQ, KK, AA and possibly AK. No matter their position, or what their situation!
Being a nit is not a good thing at the poker tables
Why you ask? When a player with a nitty image gets involved in a hand, everyone else at the table is automatically cautious because they (correctly) assume that the nit is playing a premium hand. Anytime a nit bets or raises, it is nearly certain that they have the nuts.
One of the reasons that players like myself prefer 6-max cash tables to full ring is that nits can be pressured out of their comfort zone, and driven away easily. This is usually the most effective way to avoid playing with nits, who will surely frustrate us and stymie our attempts to exploit them.
There is an article in
The BQ Digest by Mikes007 that is, while a great strat piece, a classic case in point. Now, the author is certainly a well respected player and contributor in these forums, but look more closely at his examples - what do you think of his ranges? I believe your answer to that question will confirm what type of player you are at the core - nit or normal.
For those who are confirmed nits, this is how to get better
Print this picture of our inspirational leader Viktor Blom - hang it in your office or wherever you play poker, and study his focus and commitment to the game.
Keep repeating out loud - "I can open wider from late position! I can 3bet light!"
Good luck with your recovery!