HELP! I Seriously Need Help.

Have tried many methods on his website but no positive result and my website is controlled by him and he has deleted all my files on it cry can i hack my site back.. pls guys am just a girl who want to learn hacking and get my site back and get it secured.

I scanned my site using nmap -sV and i got this,

PORT STATE SERVICE VERSION

21/tcp open ftp ProFTPD

22/tcp open ssh OpenSSH 5.9p1 Debian 5ubuntu1.10 (Ubuntu Linux; protocol 2.0)

25/tcp open smtp Cisco PIX sanitized smtpd

80/tcp open http Apache httpd

443/tcp open ssl/ssl Apache httpd (SSL-only mode)

587/tcp open smtp Postfix smtpd

5222/tcp open jabber ejabberd (Protocol 1.0)

5269/tcp open jabber ejabberd

Service Info: Host: dreamhost.com; OS: Linux; Device: firewall; CPE: cpe:/o:linux:linuxkernel, cpe:/o:cisco:pixfirewall_software

any method to start to get control of my site back?