Yes my brother will help me to take a lawyer to get a work permit inside Canada
So that's the reason why you were denied.
I'm not judging you, but it was obvious that you weren't honest about your reasons to visit Canada. And if that was obvious to people on this forum after reading just a few lines, imagine how obvious it was to the CBSA officer who reads hundreds of applications a month and is trained to spot this.
In addition, there was no way you would get a work permit in Canada. Your brother was misinformed by the lawyer or by someone else.
Your friend who was approved may well find that his visa has been cancelled as well. If many people were invited by the same shady consultant/lawyer for "Canada Day Celebrations", all those visas may be cancelled.
Even if it's not cancelled, he will not get a work permit. That's simply not how it works. You cannot come to Canada as a visitor, get a lawyer, and get a work permit..
My advice to you is to not try again. Your name has probably been flagged as a high-risk candidate by CBSA, and if you try repeatedly, you will ensure that you are never allowed to come to Canada and possibly any other country.
Try and do things the right way and you may well get approved. I understand that this may be difficult.
Good luck with everything.