Snip.
I never heard any story where a person is aggressively putting money into gambling and in the end winning any good amount from it

We will always find gamblers losing from these conditions. Many people will do the same as you are doing right now: either take a break from gambling (which is a good decision, in my opinion) or continue to put more money in, hoping for a win (this may be termed revenge gambling) and hoping to recover the losses. This way one will lose money than winning and this should not be done.
When you return to gambling, ensure that you do not risk more in each game so that the loss does not make you feel like you have lost a significant portion of your money (portfolio).
Those stories are never heard because they never happen eventually the end is usually a loss for the gambler. You can't beat the house by going aggressive on them you can only win them by lucky. When our threshold is reached after many sessions the best decision is quitting and not redepositing in the hopes that you might get a recovery of your loss. Internalising a high level of discipline can be helpful is restraining from yeildiing to the urge of gambling aggressively.