Personally I have my limits for the number of bets I play within a time frame. After 3 bets, I most likely back off even if I'm winning or losing. You are right when you mentioned that people get greedy and keep Betting when they win bets, making them lose at the end most times. Let's remove greed from the picture and know our limits.
Indeed. Emotions can make you reckless on the bigger winning or losing streaks. The same for the bet sizes, people tend to raise there bets to battle losses but most of the time it wont play out.
Your aggressiveness make you lose then after, if you play with emotions most of the time you are losing the chances of winning against the house, as each time you make a bets and keep increasing it instead of sticking with the plan strategy, you need to completely follow your system if you wanted to win, there's always a good chance to win when you are playing according to your plans and not allowing emotions to take over.