Living happy is extremely easy.
If somebody breaks your heart, don't start making plans on how to get them back or how to get even, smile to the possibilities that life will offer you, and let go. Because you aren't worth the pain or the time and if you stay stuck in going back to that person who hurted you, you are not opening yourself to let a better person step into your life, so let go and smile.
If you feel that you world is going down and there is no escape, stop for a second, breath, remember all the times that life has given you chances to smile and smile once more, and repeat to yourself that every problem that seems like an end, its just the beginning of a new happy story, so smile…
When you are having a great time, pause for a brief second, capture everything from that moment, who were you with, what music was playing, what were you wearing, and most importantly, what made you feel so happy, capture that moment and embrace it, so every time you are feeling sad, you can replay that scenario in your head, and smile.
Love hard, express yourself, don't let stupid things bring you down and remember to smile, because when you do, you light up yourself and you are happy.