I think that you can enjoy can take a small (month or so) break from Counter-Strike by playing:
Just Cause 3
Grand Theft Auto V
Call of Duty Modern Warfare series
Call of Duty Black Ops series
Assassin's Creed Syndicate
Assassin's Creed Rogue
Assassin's Creed Brotherhood
Assassin's Creed Revolutions
Tom Clancy's Rainbow Six® Siege
Tom Clancy’s Splinter Cell Blacklist (hype for devision)
That should keep your mind off CS:GO for a while
P.S - Don't forget that you can always torrent the games.
Assassin's Creed Revelations*
btw Assassin's Creed series are great, go for them. Start with the very first one and watch as the epic story builds slowly with each character. Very nice story line indeed.