Success in gambling can be achieved in two ways.
1) Give yourself a finite window of being a gambler, be it 1 bet, 1 day, 1 week or whatever. Gamble on anything you like in the window but once the window closes you must never gamble again..ever. If you made a profit in this time then you can forever brag about being a successful gambler (If you made a lose, and hopefully it wasn't much, and you can confidently tell people that gambing is a mugs game)
2) Never make a bet unless you have calculated that it will yield a profit if you make it many times. This is the +EV (positive
expected value) that you will see around here very often. To do this you need an "edge", an advantage that other people don't have.
-If it's sports you bet on then your edge might be an analytical interest in the player\teams involded or perhaps an advanced understanding of maths\statistics that allow you to spot +EV
odds.
-If it's Casino table games you bet on then you're only chance to be successful is if you apply option1 above (OK, perhaps card counting and edge sorting could move some games into +EV but I woudn't advise it)
- If it's poker you want to be successful at then knowledge is the edge. Experience & study will equip you with the knowledge to know what games, what stakes and what tables you should play at to be a winning player. (The Strategy section on cardschat is a great help)
GL