I don't chase my losses but rather just enjoy every single bit I have to gamble. Most of it comes from freerolls that are present in these gambling sites. Never deposited any btc in gambling sites but I still somehow come out as a winner. 
The reason you never chase your losses is you are playing with freebies. In my view you're enjoying your gambling life with a trail kind of account.
You may be very mature with respect to gambling/trading experience, you are completely enjoying gambling life even making profits but completely free of cost. Congrats!