It depends on the type of loss. I would forget very easily a loss where I have deposited 25 dollars and I did like 5 super bonus buys of 5 dollars each, this is achievable with IDR as currency to buy the super bonus with 5 dollars in most Pragmatic games and lost all of such buys. What I won't forget easily is again a deposit of 25 dollars and start with bonus buys again but this time I go up to 800 dollars and because of the greed I lose everything. This is something very hard to forget as I had all the options to get a withdraw and get away, even enjoy some of that money. These type of lost sessions are very difficult to forget as you completely mess up yourself and this is very difficult to get past, you keep saying to yourself, I have to stop and you can't.
It is universal that big losses hurt much more than small losses, there is a loss aversion if you lose $800 it will hurts much more than losing $25. Yes both are money lose but emotion works here. About your second type, yes it always triggers feelings of guilt when you chase big wins and unfortunately ending up losing it all, cause sometimes its makes a sense that you should have stopped, which stay with you much longer. It actually makes vague rational decision making throughout large losses when punters often pursue losses because of the sunk cost bias & illusion of jurisdiction. If you want to cope, setting firm stoploss limits is of the essence with treating high budget sessions as entertainment, not a lucky chance to win back.