Bank Robbery - Prologue

Hi all, I have to write a short story about a bank robbery for my English class, a little help with my mistakes will be very useful. Thanks in advance.
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I am ready to relate the amazing events that occurred in December 2013 I wonder sometimes how I could achieve it it could have happened to me (is this what you mean?). I was only an individual walking along the street, thinking about my life and hoping for a change. Time was going certainly passing by, and I wished for some kind of adventure, but nothing ever happened. I was thinking in about these silly things when I passed next to a bank office. I remembered at once I had to pay an invoice, and I thought, “shit, I hate to lose my time, but I must do it.” (I would NOT use a bad word!)

Sounds very interesting so far! Watch out for run-on sentences--2 sentences which have been joined together, but really should be separate.