It's a good thing that you decided to self-exclude yourself since it's pretty clear that you have a gambling problem. I have had bad streaks myself which is completely normal, but I was willing to lose all of those amounts.
If you aren't willing to lose your money while gambling, you shouldn't be gambling at all regardless of whatever the reason is. All the best!
You think is really possible for someone to gamble without losing and having that mindset to accept lose whenever they experienced it?
Yes and like I know as gambler we should be prepared to accept the risk associated with gambling while taking that decision to involved themselves to gamble, and one must gamble with the amount they can accept to lose. The thing is, as much is expected from any casino so it also expected to lose any amount as well while gambling but the truth is whenever a Gambler is gambling within their limits it makes it very easier for them to accept any lose while gambling.