What documents did you submit last time? Your travel centenary can be a simple document that explains a day to day schedule. For example:
Day 1: Niagara falls.
Day 2: CN Tower and Ontario Science Museum
However, this won't help you in your other 2 reasons for refusal. Are you unemployed? You also need to show ties to where you live. Are you an expat living outside of your country of citizenship?
You can include per day expense estimates for travel, sightseeing, meals, etc + hotel (if you do not have a host who is inviting you)..... and prove that you have the funds for this itinerary
I AM PLANING TO APPLY CANADA VISA BUT MY FRIEND LIVES IN VANCOUVER AND HE IS SENDING ME INVITATION LETTER AND I AM PLANING TO VISIT CANADA FOR 7-10 DAYS , COULD YOU PLEASE HELP ME IN PREPARING DAY TO DAY ITINARY FOR VANCOUVER AND VICTORIA ......................................