I just want some advice for the future reference of when to cut my losses and run.
Well. you already had some great advice about how stop losses, sessions and win goals don't mean a thing.
So, start with the premise that you have a limited entertainment budget and that you are buying entertainment time and an adrenaline rush or two. Some guys use maths, lots of care and actually aim to profit, long term, but you are not in that group if you are playing Baccarat.
I play Blackjack for similar entertainment. My casino is about 20 mins away, so my objective is to generally. . .
Get an hour or two of fun. At least two free drinks and a good laugh. I like to get a bit of the adrenaline from an occasional bigger bet.
My anticipated average loss is about £25 for that hour. That being either complete loss of my £150 session bankroll, or doubling or maybe more that bankroll, or ending an hour or two roughly even. The time limit is the measure. You wouldn't want to sit through a 5 hour film, and you wouldn't be pleased to just watch a 10 minute stage show. So aim for a session that fits your needs and pace your betting to fit that.
All of my expected outcomes are equally acceptable, and I realise that playing that way will tend to have about as many winning sessions as losers and that I'd be pretty gutted if half a dozen consecutive sessions had me go bust but it's all play money. The big error I could make, ( and we see it a lot ) would be to get ahead a bit and up my bets. That's destined to see me never walk out with a profit.
If you feel bad, or cannot afford to happily lose your session bankroll, you simply shouldn't be there at all.
Bet size. There's one guy frequents the casino that plays one £10 chip on roulette 0 as his single bet. That doesn't strike me as fun or worth the car journey. I find that with my modest session bankroll of maybe £150, I can tick over for an hour or two before busting or not busting, if my average bet is 1x or 2x table min of £5.
Some times I crash and burn in 20 minutes, sometimes I walk out with £300, which is just money to play with next time round.
Just don't ramp up your bets just because you win or lose. That's the road to ploppie oblivion.
Embrace the Variance