Yeah, it's not advisable to use large amount especially if you are unable to control your emotions, better to use spare money and enjoy the game, if luck permits then you may take out decent amount, but if you lose then it's not hard to move forward and forget about it, it's more on money management and how you handle the pressure when you already dealing with each sessions that you play, similar to you, slot can bring decent if the timing is right and you manage to quit while still at green.
Everything that has to do with games of chance and sports betting , we must have financial maturity, It is known that when betting that money it is not safe, we are risking losing that money Completely There are some daring gamblers who do not give it the required importance and they do it , some win , others do not, but at this moment in life I am not capable of Taking a risk in sports betting or in a casino, in fact most of the bets are with very little Money.
That's the first thing to consider when using your spare money into gambling, taking it into the account that it should be considered as lose or money that can afford to let go, something like a payment for your chosen entetainment, though if luck permits then you may earn something decent but you should have that good insight that risk is behind and whatever will happen you should accept the outcome to avoid losing control and get addicted.