Yes it is possible, but I think the way you mentioned would be better if your goal is to learn some of the games that are already provided in the casino and not for the purpose of how to win, it will only be useful for basic training to understand how the game works and not referring to how to win. Because basically the results of the demo account and the real account are very different, it is clear and maybe some here have proven and accepted the true fact that the demo account is nothing more than just learning some games.

Losing is a given and winning is a bonus for your dedicated involvement, in my opinion it is better to focus on preventive measures and not on winning, because after all winning is very difficult to get unless you are really lucky in the session you are doing. The other thing is of course that it is true as you say that all gamblers are advised to carry the smallest budget they can afford to lose, because that means they take the smallest risk and don't put any expectations on the winnings that are always uncertain.