Hi guys,
I have this weird problem. I have never quit at the highest point of my session. I have been playing at my local B&M at least 5 days a week for the past month. Not a single day have I quit at the highest point for the night.
I am overall positive (about 165 BB playing 2-4$ limit) . However the storyline is same all over.

If i am up 120$ say in3 hours then I would play 1-2 more hours and leave up 70$ or maybe i am up 180$ up at a point and then leave the night only 100$ up. I JUST NEVER seem to get my TIMING RIGHT when to quit .

Q1: Since I am one of those guys who like to stick to 1 same thing day after day (making it a discipline) I would like some advice on what should I keep my Up and down limit and quit right after I reach that (regardless of how much time i have been in the casino). Even if I have been there 10 mins if I reach that limit i should quit.

Q2: What is the up and down cutoff (regarding profit or loss) you guys impose on yourself for 1 night.
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For an example of my frustration, here is what happened just yesterday.

In my first half an hour went up 130$ in 2 hands. I DIDNT outplay anyone just got plain lucky (hit quad tens and trip eights back to back but i was playing playable hands in that loose table).

Then the downswing started. lost my 130$ and my initial 100$ buyin rest of the night playing a bunch of fish. I was playing my usual tight game (with occasional looseness playing suited connectors and gaps).

* Flopped the nut straight and lost to backdoor flush.
* Went AA against KK and he caught his K in the turn.
* Went KK and 10-10 both times against AA when my cards appeared safe overpairs LOL.
* Went QQ against AK when he caught K in the river.
* No four flushes came through.
* Played pretty much the blinds rest of the time

I SHOULDVE QUIT in my first 10 mins LOL