Why do you have to celebrate or at least remember your birthday?

Our age added yearly. Weather you want it happen or not you still have to face it. So why not accept it as it is. You only set your goal and try to reach it. Happiness will not happened every moment you want it. Make the most memorable as part of the highest level of happiness. If by the next year you feel sad then just remember the previous one that make you happy. 
Celebrating birthday doesn't mean eat and eat all the way. Wishing someone also part of it. Make each birthday worthwhile to remember and decide well in every decision you make. Don't regret it if you happen to make slight mistake because whatever it is try to fix it to minimize the unwanted incidents here and there. Smile a lot the added age will not affect you at all. Try to avoid argument in any way except needed. Make room to listen to others. One day you realise your attention make someone feel love and love you back. The more you celebrate your birthday the more mature you are in decision making.
Relax and make room for yourself. You may minimize stress and feel good about everyone around you. The most important be healthy, you have more time to think and decide later on what should you do next.