I’ve had proper DKIM, proper SPF, my IP wasn’t blacklisted anywhere.
But I still ended up in Spam.
So I had to send for about a year emails to friends every few days, replicating our discussions on WhatsApp etc (so they’d have organic content), and I’d ask them to mark them as "not spam".
Now I end up in their normal Inbox.
EDIT: Why the downvotes? Please comment instead what you think is wrong – or how else do you think I should get my personal domain trusted?