Why do I suck on Friday nights?

[sternroolz]

Others have mentioned bluffing and if you play live I agree.

Weekend games are looser/gamb00ler type games. Fridays, the fish are at the end of the workweek and blowing off steam.

If you play a LAGGY style of play, that may work during the week when you can push the many weak tighties off lots of hands. However, this style of play gets its butt kicked at full tables that are loose where someone will call you down no matter what.

You need to drastically alter your game to TAG or simply quit playing on weekends.