I'm sorry to hear of the issues you're experiencing. Your Linode is currently booted and it is responding to ping, but after reviewing your console it appears that your SSH server failed to start for the following reasons:
----- SNIP -----
Starting sshd: /var/empty/sshd must be owned by root and not group or world-writable.
[FAILED]
----- SNIP -----
It appears that some other services have also failed to start:
----- SNIP -----
Starting MySQL. ERROR! Manager of pid-file quit without updating file.
Starting sm-client: can not chdir(/var/spool/clientmqueue/): Permission denied
Program mode requires special privileges, e.g., root or TrustedUser.
----- SNIP -----
You can view these messages for yourself by connecting to your Linode via the Lish console: