I love to play poker too and usually when I get 4 of a kind cards depending on the number or straight flush then I will go all in. This is what I am always winning at poker and I feel lucky if I had this cards. However it may also sometimes difficult to obtain and get coward sometimes when someone will call huge bet. Poker is an easy game to play but the problem is that you can get emotional in the process of betting either you need to let go of your decisions to call or not every roundswl with bets that can go higher and higher each round and that is one pressure you could get when playing poker.
You are not trained to play pro so it is okay, my advice is not to go all in when you get a good card, try to bet little by little to bait the other players into thinking that you are bluffing, when you get that kind of card, it is always worth it to lose your money. You can watch pro players held a high hand and bait others into playing all the way.
No matter what his card, if he is not a pro poker player, he should not use a big bet because he will meet a pro poker player who has high skills in a poker game.
If he uses big money to bet, he will have a chance to lose because a pro poker player will have more experience in that game.
It will no problem if he only wins some little money in a poker game because he should not chase the winning.
He should always remember that he is not a pro poker player, and it is better to play safely in any gambling games.
Even if he can bluffing another opponent, that doesn't mean he can do the bluff to all players because I am sure that all of the players will have the way to anticipate that.