Why are you concerned with having an original thought?
With 7.3 billion people in the world
you will share an idea with at least one other person

The only difference between you and the other person with the same thought
is the one person's ability to take the idea
and create something out of it

Start walking, start doing, start thinking
...and THEN...
Do them all, simultaneously.

You achieve something different,
when you put them all together.