You want to come to a point that wins and losses don't make any difference in your emotions.

How to establish this?

Realistically this is ONLY possible if you have an edge and know that you will win in the long term. A professional gambler.

Loosing gamblers and recreational gamblers will always go for the biggest payout possible, chasing losses etc.

As a professional sports bettor I can say, professional gambling is very boring, but that is how it is supposed to be as a professional

Hobby gamblers are just seeking an adrenaline rush, and that is fine also.