You create the meaning of life for yourself. Progress is the equivalent of happiness. If you make progress in your life, i.e. develop yourself, learn things, improve yourself, have new experiences which make you grow or whatever, then you will be happy and satisfied. And the best thing is, you will find your meaning of life in the process. Also develop some strong morals and principles that carry you through hard times.
If you want to live a miserable fucked up life, follow the advice of some here and fuck everything that moves and do whatever you want like live for your kids, just do parties, travel a lot and play video games all day...all these are things that come from the outside. It's fun, sometimes for a long time, but it is not going to answer your question, let alone give you a meaningful life.
By the way, you can (and maybe even should) do all this anyway, but you must improve and take care of yourself first. Things with a value that is determined from external sources should not and will never be the driving factor.