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Yes, correct feel and on moods only for all-in betting.
Go search on the internet, and find Basic Strategy Playing Blackjack. I'm using a basic strategy from "Casino Ground", basically playing on a basic strategy to maximize your deck RTP.
In the long term, you have more chance the deck on your side rather than dealer.
Thank you I have found the article at least the article improves my knowledge about blackjack game

The last question when you are all in other than relying on feeling / mood do you also use card counting strategy?
I heard a lot that whale players sometimes use it yes although not 100% accurate.