Do not be limited.
Every day on my way to Design college, I used to pass the Parnell Monument in O'Connell Street with his quote "Thus far shalt thou go and no further." Back then, his pointing finger seemed to be indicating Conway's pub, which seemed logical enough.
In my working life after college, many people have suggested various routes are dead ends, many creative problems insurmountable... One former creative boss, when given a particular creative task, exploded "That's impossible!". I took it as a challenge.
Now as an independent creative, I realise that there is no impossibility, no challenge that can't be solved. There is no limit to what you can do.