My last big win was a year ago and it's $500 but it's forgettable because I lose it three days after I did not withdraw my winnings I was hoping back then that I can still double my winning but unfortunately I did not, every session is very much different from all the other sessions and not every day is your lucky day, you should stop chasing your losses also.
Chasing losses leads to bust sooner or later, it has been proven many times by all gamblers unless you have unlimited bankroll to keep doubling bet size. After winning nice amounts, cashout is the key to protect your money vs emotions since you don't see winnings as extra money that can be withdrawn anytime.