Steam Community :: Guide :: How to: Disable chat in game (hud_saytext / hud_saytext_time equivalent in CS:GO)
▷ CS:GO Ranks List ++ The Ultimate Elo Rank Table ++
Bind , and some other Really useful binds/cvars that i use daily. : GlobalOffensive
Steam Community :: Guide :: Binding Commands/Chat Messages
These can be used to call strategies if you don't have a headset, such as binding "Rush B" to your L key.
Probably you might be connecting to the wrong servers which is why you are getting high ping.