Memorization of vocabulary #5

Good day to you, travelers! I'm studying English and could use some help. Please, find my grammar and semantic errors, I'll be grateful ^^. These sentences I made for memorization of vocabulary, and if I missed with lexis - please, improve it too.

1. A flurry of frosty wind from the opened door almost knocked me off my feet..
2. Harness all your confidence - you'll need it.
3. John slammed him on a shoulder with a smile.  -- You would not slam someone with a smile.  You may slap someone on the shoulder with a smile.

4. Look! A rabbit is running over the field, just right there!
5. He clamped down the steering wheel with anger. (angrily). 
clamp down on something = to take action to stop something (e.g., a crime)
The police have clamped down on drunk drivers. 

6. Do you be happy of notoriety about your name? UNCLEAR Do you mean: Would you be happy if your name became notorious?
7. Work hard and you can get over this difficulty.
8. Can we skirt this hills?
this + one thing (this hill)
these + plural noun (these hills)
9. This dog is relentless or just mechanical? It has been barking for almost an hour!
10. What was that sound? It sounded like a train clattering nearby.

Thanks a lot for your time!