I'm about to stop playing poker.

[Gap23Razor]

several things could be going wrong, sooo...

1--Variance---300 big bets should be your bankroll...you have lost only 120 big bets, so you still have quite a way to go to confirm that its not just a bad flux...

2--Tells?---you might be tipping your holdings...are you talking at the table too much? In a big rush to get you chips into the pot, cards into the muck? Try reading Caro's Book of Tells...Meanwhile, just clam up and play--remember, these old timers you are playing against have all kinds of life & poker experience on you, so they may have a read on you (hell, being a parent one sure hears a lot of stories & gets experience at sorting out truth)

3--game selection--the rake & tip are probably soaking out a lot of your winnings...below 3/6 is hard to beat with the B&M rake/tip structure

4--your play---do you bluff? if you do stop, those folks will never fold...just bet for value, and check-raise when you can

5--which set of starting hands are you using from SSHE? The tight or loose game ones? I would recommend using the tight ones...but recognize that top pair unimproved will often not stand up when their are several players in the hand...anyway, whichever you are using, switch to the other

anyway, play it for fun, and remember, if you are smart enough to earn money at gambling, you are smart enough to earn far more doing something else...