A creative life cannot be sustained by approval any more than it can be destroyed by criticism.
Always carry a notebook. And I mean always. The short-term memory only retains information for three minutes; unless it is committed to paper you can lose an idea for ever.
Don't look back until you've written an entire draft, just begin each day from the last sentence you wrote the preceding day. This prevents those cringing feelings, and means that you have a substantial body of work before you get down to the real work which is all in ... the edit.
An English gentleman never shines his shoes, but then nor does a lazy bastard.
I'm going to end up like one of those old weirdos who lives in a network of tunnels burrowed through trash - yet I do not fear this.
You know that sickening feeling of inadequacy and over-exposure you feel when you look upon your own empurpled prose? Relax into the awareness that this ghastly sensation will never, ever leave you, no matter how successful and publicly lauded you become. It is intrinsic to the real business of writing and should be cherished.