What have you built today?
You can always make your current one irrelevant. Rather than complain about topic x of the day, take the time to make yourself a better person instead. Learn something. Build something. Fix something. Each day, every day of your life, make the world a brighter place. The sum total of humanity has a long way to go before completing a trillionth of what is worth achieving, you can pick up a bit of that.
You base your self worth on what other people think of you, you are asking for trouble. As a presumably rational human being, you have a lot to achieve and a lot you can achieve. It's not for myself or most others to tell you what that is - not knowing your talents, not being our responsibility - but you can always take an accounting of yourself.
Make music. Make art. Make programs. Make pottery. Whatever you do with your life, if you can create wealth on your own, you are by definition not worthless.
So go make somethings. There's no need to get back to us - if you develop a worthy talent, it will be self-evident.