Cannot SSH to my ubuntu droplet.

I have added my public key in the settings/security section, and created a droplet with that key selected. I am trying to “ssh {server_ip_address}” but I still get the prompt for the password.

this is the output of ssh {server_ip_address} -v

debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug1: Connecting to {server_ip} [{server_ip}] port 22.
debug1: Connection established.
debug1: identity file /Users/{myuser}/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/{myuser}/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/{myuser}/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/{myuser}/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/{myuser}/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/{myuser}/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/{myuser}/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/{myuser}/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.9
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.3
debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.3 pat OpenSSH_6.6.1* compat 0x04000000
debug1: Authenticating to 45.55.2.137:22 as '{myuser}'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client chacha20-poly1305@openssh.com <implicit> none
debug1: kex: client->server chacha20-poly1305@openssh.com <implicit> none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:FiZC1ldiqmwS4n5Z9mayVv2SpjdPbpVAqMwuGrBTbr8
debug1: Host '45.55.2.137' is known and matches the ECDSA host key.
debug1: Found key in /Users/{myuser}/.ssh/known_hosts:3
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /Users/{myuser}/.ssh/id_rsa
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /Users/{myuser}/.ssh/id_dsa
debug1: Trying private key: /Users/{myuser}/.ssh/id_ecdsa
debug1: Trying private key: /Users/{myuser}/.ssh/id_ed25519
debug1: Next authentication method: password