Don't try to be the 'next'. Instead, try to be the other, the changer, the new.
It's easy to pretend expertise when there's no data to contradict you.
You can't have good ideas unless you're willing to generate a lot of bad ones.
Just start. Start now. Fail often. Enjoy the ride.
If you're in the idea business, it doesn't matter where you're from. It matters if we care about the change you're making.
Sign your work...If you're not proud of it, don't ship it. If you are, sign your work and own the results. We'll know who to thank. If you work for a place where work goes unsigned (internally, in particular) it's worth asking why.