Hi,
I understand your feelings completely. I have had severaly birthday that were ignored and I am not alone. I have tried to find ways to celebrate myself or take the time to reflect on what I have to be thankful for. Now we all have each other.
Take it from me, taking more medication or not taking it properly will only hurt more. It will not help at all. Do not stop taking your medication because you will go through withdrawal that is worse that you feel not.
I was going through a bad time today. That lead me to finding this website. You are not alone.