If life was allotted a meaning, why is it even a question what this meaning could possibly be? It is exactly the LACK of meaning that makes the question in the first place. Some people find this depressing, and they make for themselves a "purpose" as a surrogate to continue in this overwhelmingly meaningless life. Be it their work, charity, religion, whatever. But why is a life without meaning so bad? Why not live as a nothing? The more money you have, the more problems. I feel like the more "purpose" you need to allot to your life, the more problems you will have. Getting depressed, sad or angry when challenged with an idea that suggest you do not have an objective meaning or purpose seems to be one such problem. Besides, why isn't the overwhelming sexual drive, and the will to exist a good enough answer for you? To reproduce, and exist.

The world will continue without you, just as it would with you. just a few years after you die it will continue with or without you.

You do not matter, and neither do your actions.