Thank you for your kind suggestion.
The commission plan for questrade is 0.01 per share Min 4.95 per trade. but it allows me to day trade with as little as $1000 initial fund. And the headoffice is 10 mins away from my work. So I can go see what's going on there and chat with staff.
Compare to my trading size, the commission is a lot but I think starting with this disadvantage wil force me to be selective with every of my trades. I wll add more shares gradually if I can keep the consistency.