I believe that you should just check your spelling , capitalize some I's and the word January .
You should also give more detail about the Sunday event.
When you say the word conclusion I begin to think about a short paragraph / summary , this means you should bring the reader in , draw my attention to your mint idea.
I really hope that I'm helping you , :)
But you didn't mention any story...
Number 2 is correct because this is an appositive sentence structure, which means one sentence is interrupted by another.
Hope I helped!
Semi-formal is the answer
