The phrase "full of happiness" is often used to bless others, meaning that those who bless will have good luck and full of happiness.
"Good luck" and "good luck" are commonly used greetings to celebrate festivals, happy events or express blessings to others. On different occasions, these two greetings will have different usages.
On the occasion of celebrating festivals or happy events, "Fu Man Lou" can be used to bless others, which means that those who bless will have good luck again and again. For example, during the Spring Festival, you can say "full of blessings and good luck" to your family and friends.