A lot of Games are played around the world (if not all of them).
When playing Call of Duty, I noticed that there are times of the day and days of the week that are preferable for playing, (at least for me) times when I wouldn't get slaughtered because of my skill level in the game. This also means that certain types of players are on during certain times and days of the week.
Suggestions:
- get offline, do something else, and come back later.
- Practice the game through Campaign mode (if that is an option to the game) or Offline
- Turn the volume down/off
- Mute players you don't know (or wish you didn't know)