its a normal feeling to push yourself a bit harder in whatever you're doing when you see others that are into the same thing with you being more profitable than yourself but you have to be matured with how you go about comparing yourself with them.
Their is no guarantee that if you stake more that you will have better result so the best thing you can do for yourself as a responsible gamer is to plan your gambling routine and the maximum minimum amount you can work with on a daily bases regardless of the turnover of the game.
You should also understand your financial strength with relation to that of the person you are comparing yourself with so you wouldn't try to use your average income to make a comparison with someone that is already established in a business or firm and that can withstand certain loss.
It is indeed a natural thing, when someone does the same thing but has a difference in profit, and someone who sees other people get a big profit of course it can affect them, because it is a natural thing especially things related to profit of course everyone wants a big profit. But what must be remembered is that luck is different, so even if they follow others by placing large bets too, it does not guarantee that they will get a profitable victory.
It is true that you said that the best for yourself is to be a responsible player, this needs to be considered, because many gamblers are not responsible for what they do which leads them to huge losses. And indeed we also have to look at our financial strength, if it is not able to place a bigger bet it is better not to be rash, because luck can be on anyone's side, and does not look at the amount of bets, so even though we bet with a small amount if we are lucky, we will definitely get a profitable win. Although it can affect but it is better to introspect yourself first, so that nothing happens that is not wanted.
You are correct in aspect of betting higher in a different game,,, that's true that one can not get the same profits as the other might have gotten but I can hopefully say that if the both person's are betting on the same games and the same amount they will definitely win the same amount of money.. but when they don't bett on the same games and buy staked the same amount, when the both both gamblers won, the only things that can make their money to be different amounts will be the cause of the odd, why because the others might be picking bigger odds while the next person will be picking smaller odds.
This happens because everyone's luck is different, including their fate, I think that even though they gamble with the same game and with the same amount of bets, both of them will get different results, but the security that can be obtained is defeat, they both have this side that is clear, but with victory like it will not happen the same. especially with slot gambling, because luck has a big role in this one game, but clearly luck will determine whether someone wins or loses at gambling.
When someone gambles by seeing friends or other people who get a big win, they will do the same thing to be able to get a win like others get, but I'm sure the results will be different, including the amount of winnings obtained, if they do get a win. because in gambling the victory is very difficult to obtain like looking for a needle in a haystack, it is very difficult. and as you said the chances of winning are also different, even if they gamble together but that will not guarantee they can get the same win.
It's a natural and human feeling if we see someone with a big bet get a big win. But as friends have explained above, each person's fate is different. So even if you bet big it doesn't guarantee that you will also get that part. It could be that when you place a big bet you lose at that very moment.
Keep measuring your finances, play appropriately and don't look at other people's fortunes. Even if you only win a little, it's more relaxing than winning a lot and then you place a bigger bet and suddenly you lose big too.