Staying positive during gambling is normal but until the ticket is successful don't see it as a life changing moment, gambling isn't a source to project life changing amounts, whenever it happens see it as your luck that only happens to a few persons.
Taking risk on huge odds is something i do, but it comes with a lesser stake. I don't hope to win millions on it and i don't stake on huge parlay, betting on underdogs usually comes in a single bet, in my case i don't expect winning a life changing amount from betting on underdogs.