“We look at the present through a rearview mirror; we walk backwards into the future.” – Marshall McLuhan
Human’s natural instinct is to always improve the old before creating the new. That’s why privacy and copyright are huge barriers to the success of the internet. They existed for a world that made money from physical limits.
There are two important outtakes here. Sometimes the best new things will be something old first.
Maybe more importantly, don’t beat up on yourself if whatever you’re doing doesn’t feel original, just get it done, then do it again. Evolution takes millions of attempts. Falling over happens when you walk around backwards.