But the problem remains. What tone do you adopt when writing about yourself?
Boastful? A good chance readers will drop away like Montreal flies. And indirect boasting ("People tell me... ") is just as obvious as the direct sort.
Truthful? Harder than it looks. To keep the faith you must give both sides - good and bad - which risks boasting (qv). Also, "balanced" judgments become wearisome.
Fantastical? Replacing oneself with another persona, allowing some extravagance. I did this via my blogonyms: Barrett Bonden (dependable bosun in the nineteenth-century Royal Navy) and Lorenzo da Ponte (Mozart's main librettist). But it's a strain and can be misunderstood.
Impersonal? No capital i. You become the Ministry of Pensions. What the Hell, blogging is you and me.
So, self-deprecation. Ie, knocking oneself. But wittily (one hopes). Pro tem that's it.
Blest Redeemer (Title change imminent, I think). 141,465 words.
Mabel ignored Judith’s mug, filled a bone china cup, placed it on a saucer and put it down on the desk. “You’re clever and you’re better looking than Fiona Bruce. Yet you barricade yourself behind tons of mahogany and wear bookie’s suits. A very high-class bookie, but a man of the turf nevertheless.”
Judith sipped coffee. “I needed to be taken seriously.”
“I realise that, canny. But you’re long past that. Time to be yourself. Look at you, I mean. None o’ that should be disguised.”