Well, I haven't done very well with gambling, to be frank. I've tried some martingale and other methods, but they haven't worked out for me, its actually the house edge, it just keeps getting the better of me. I haven't really invested on it, so I fortunately didn't lose any money from my wallet, but I used the bitcoins that I got from faucets and I have lost every game in the long run. So, I haven't really gained much from gambling, except for experience.
time that you consumed can consider as an investment to learn mate its up to you now if you will continue with the learning that you got coming from the game you play i think poker is one of the best place if you really wanted to make some opportunity from time to time you will build strategy that will give you some edge to gain profits just needed to assess yourself if how far you can take the risk of losing.