the only way how to get lucky is when u have a good mood,go to casino,deposit as much as you can afford to lose,then play single bet with max bet,whatever the result,don't make any bet anymore. if u win u get your lucky,but if not, u didn't get it.
BTW,i don't think this way will works on lottery game,since probably win is more than 50:50.
Having a good mood will not help much because you still don't know if your luck comes to you or not. I won't advise playing single bet with a max bet because that will not be recommended too. You can get upset if, somehow, you lose, and that will change your mood, and finally, you will deposit and use more money to gamble. The best thing that you can do in gambling is not trying to think about your luck, and playing, as usual, don't play the games too long, enjoy the games, and let the time will answer if you are lucky or not.
The lottery is a gambling game based on luck, which is not given too big percentage for you to win. Even if you think that the probability of winning is 50:50, it still hard to win because only one lottery number that will come out as the winner.