This is often the case where a gambler has more money in gambling he doesn't mind losing a few big bets but when he loses a large part of money he starts to realize that he has lost some money which will be difficult to recover at that time. But unfortunately at that point the gambler can't try and get back to that earlier position. This kind of thing happens to me as well. When I increase my bankroll my losses won't have any effect but when the losses are high I try or think to myself that I will take a break if I get a big win or recover my lost money but It is difficult to get back into that position.
Taking a break is just the best thing to do in times when you suffer huge losess, coming back shouldn't be with a mind of wanting to recover or regain all that have been lost because you may literally end up loosing more since your mind is just focused on that almoe and trying to get recovery. What you should be aiming at in the moment should be your money you are staking at that time and how well it sits with your bank roll such that you will still have the privilege to still place a bet against after that just in case you loose in that bet. Then another thing is of you get a big loss and later you attempted recovering it d you succeeded, make sure to not continue rather take a break for the day and maybe continue the following day.
Somehow is actually fighting back the casino/gambling site to recover what they had lost already is very bad to me, this type of gambling shouldn't be encouraged and should be totally avoided to eliminate more damage. There are lot of people whom I knew then that as been gambling this way instead they went going bankrupt and was pay debt over 5 year plus of their lives.
The best is, when gambling and they noticed the lose is much what to do is to learn another strategy or maybe limit and restricts themselves going to gambling site less until the gain another strategy or has learn newer format to gamble then they could fund their account to try it, and if they resumed and noticed that it's not helping then they can explore another method to gamble.
Take a good rest and make a reset if possible, same deal with what you are saying find a new strategy or enhance the current one and try again if luck will back you up with your new setup, I think with renew energy and with positive vibes before taking your shot again it might bring that entertainment and avoid you focusing too much with recovering your past loses. Things going to work fine if you don't have any pressures inside you while gaming or waiting for the game that you'll going to bet on.
It also lessen the chance of getting addicted as after to make that hard stop you should learn from how you ends up your last time session, from those past experienced you need to adjust.