I genuinely do feel bad about it each time I lose a gamble (usually on cryptocurrencies). But then I think- "it's all part of the game" and I instantly feel better again, HA!
Is it that easy for you to do that?

Most gamblers would at least take a day or two to get out of the remorse when they lose something significant, by something significant I mean money that is higher than the decided budget, and if you lose that, you would probably hate gambling and your decisions for a couple of days and then you will get back to it thinking that you wouldn't make the same mistake again.

If your emotions are so soft that you can just think that it's part of the game and you instantly feel better, you are lucky, because most gamblers would not be able to have such control over their emotions which is the basic reason why they get addicted to gambling because they can't convert their minds and control the urge to gamble more.
Basically having the ability to accept the fact of risk and losing in gambling is good and is indeed one of the requirements for responsible gambling and is indeed quite recommended because with this you will not be trapped by your own emotions when you lose, but on the other hand this ability should not be utilized, or it means that you continue to gamble indefinitely and if you lose then you will say that "this is part of the game", The concept is not like that, which is where losing should be a lesson, I'm not saying that you can refuse to lose because the name of defeat will not be avoided completely, but what I mean is that you also have to have limits both in terms of budget and also the time of involvement which will make you probably lose less often because you have limited or not too frequent involvement time.
Yes, it is true that most gamblers do not have this ability, or they are not able to accept the consequences of losing at the end of the session where most of them are stuck in their own emotions due to not being able to accept the fact of losing, and maybe I would mention that it is a typical irresponsible gambler or loser who wants to win but is not ready to lose.