I have ubuntu 16.04
I have disabled root login.
I have a user with sudo.

I made an ssh authentication key pair:
I tried to scp my public key but was told that the file doesnt exist.
I copied the public key to text edit on my mac.
I pasted it into a file I created in .ssh called authorizedkeys.
A file called authorized also appeared.
I changed the permissions in sshdconfig to allow authorized keys and not allow password login.
I chmod 400 authorized keys and authorized.
I chmod 700 .ssh

The long and the short of it is that I cant get into my server, no password, no root, no keys, I dont even get aske for my phrase.

I hope I’m not completely stuffed cos I really dont want to destroy my droplet and start again.

Any ideas?
In case its not painfully obvious I am a complete noob and just working from a book so super easy answers would be appreciated.

Thanks all