To access the server via SSH you need the droplet's ip address
Open your terminal and cd into the directory where your private and public SSH keys are located. Once you're there run
ssh -i key_name root@ip_address
keyname = your private key name (key without .pub extension)
ip_address = ip address from droplet that you copied above
Your terminal will look something like
Now that we can SSH into our server we can install mysql and import our database!