Id definately suggest winning in small increments.

Here is the "rules" i set for myself:
- always small bankroll (as ive noticed that knowing that i have only a limited number of bets left keeps me in check from taking unnessesary risky large bets & makes sure that i stick to my small 3-4 step progessions & accepts a small loss instead that i can win back in just a couple of bets).
- dont gamble while drunk (Didnt think itll really matter getting a small buzz on, but it clearly affects both my analytics & betting & decisions).
- max session i play is 2 hours a day (as my concentration goes out the window affecting everything).
- Pull out when i feel like it (this goes both for a single bet, partly into a progression or the whole session. Some may argue its wrong & yes there are times i should have stuck to playing out a progression, but there certainly isnt anything wrong with skipping a bet as nothing risked = nothing lost, and you can always recover the hard slow grindy way).

Blackjack:
Not much i can say here other than: study your game/dealer as they definately arnt playing the same. Here im thinking mostly of how many card decks they shuffle in. Ive seen crazy stuff like the dealer pulling 7 aces in a row. Best advice i can give is pretty much always "stand" and wait for the dealer to bust. The times ive won standing on 12 is actually pretty high.

Roulette: i find that analyzing the wheel behavior to be quite helpfull & so i keep analyzing for multiple things during play too. Sometimes its very obvious like i get to the wheel 4 of the 5 hot numbers listed is all in the Zero section so it wasnt hard to pull a profit even with just a bit of flat betting the section. Rarely that easy tho.
i dabble in:
- hot sectors, i check for both hot sections, but also for sectors repeating often and plays a 4-5 step progression (with max bet 20% of bankroll) depending on the situation.
- EC bets, i usually bet all 3 at the same time, multiple ways, progression 4 step max 10% of bankroll. As a general rule: i assume that 2 of them will constantly change while the 3rd will streak after a couple of bets. Protective bet vs zero may be usefull unless zero is outright listed as coldest 5.
- dozens & colums. Mainly Grassroots variations to choose from.
- hot numbers. are nice but tend to expire quick & is hard to catch i find.
- dealers. Again some will probably say it dosnt matter who rolls the ball & its all my imagination.