I think we take ourselves too seriously most of the time.
We keep hoping that we will have some wonderful insight about how we came to be here and what our purpose in life is. Actually, if we live a good life and bring as much joy to those around us as we can, we will have done our best. Of all the billions of people who came before us, not too many get remembered beyond a century and certainly not beyond a millenium – just a very few. All these people were here, doing their best to make a life, and yet they were soon forgotten. I think the pool is too large for us to make much of a splash or leave a very big wave behind us. Be happy if you can leave things a bit better for those you leave behind and perhaps they will remember you for a while after you have gone.
If you reached for the golden ring and failed, at least you tried. If you kept your nose to the grindstone your whole life, you missed seeing a beautiful world. Don't take yourself too seriously – just look for the joy and appreciate it when you find it.