You can attract happiness by changing the attitude in your head.... All you have to do is meditate. I recommend interviews with Joe Dispenza and his meditations. 

Rituals also support the whole process

Happiness rituals are a river topic. Much depends on how you define "luck." For one it will be winning the lottery, for another it will be finding love, and for another it will simply be having a good day. I myself sometimes use rituals, but I tend to focus on attracting positive energy and opening up to opportunities, rather than on specific events.