This is where the non-believer will tell you that they "do not need to believe in sky fairies and the afterlife to enjoy life and find meaning in it."
I think you are assuming that everyone must feel like you, and have to find a justification for being alive in order to go through the pain and find meaning in the pleasure everyday. This is definitely a philosophical quandry I think many people go through ... but I can tell you that at one point, I thought exactly this same way. So the belief in an afterlife and god "having a purpose" for me became a reality which I lived by and used.
But eventually, I saw I was hiding behind those things as an excuse to not experience the reality that was here and just take it at face value. Life is pleasure and pain and lots of other stuff. Finding meaning in it is rewarding and wonderful. But HAVING to have a meaning behind it can drive one to living on crutches when you can probably walk just fine without them. You can accept responsibility for the pain you cause and forgive others for the pain they inflict on you without having to justify them or yourself. It's just life. God doesn't have to arbritrate everything. Also, you can enjoy pleasure and love others and even sacrifice yourself for others and causes without feeling guilty or afraid and having to reasons to feel those things or not feel them. Regardless of what you believe, you will die one day as will all of us. That will be the culmination of the point. What happens after that doesn't have to determine how you live now.
And here is a thought ... if there is a god, would he eventually want you to make your own reality or always be enslaved or looking to a version of his or someone elses?