biking for traffic

So I just got my fixed gear bike today and tomorrow I'm going to try to ride on this highway. Do you guys think I should take the sidewalk first and practice riding my bike before taking this narrow highway? I'm not quite sure for myself. I'm confident but not really.

A group of cyclists is pushing not only for the installation of the bike lanes but in advocating the use of bicycles. They said that the gargantuan traffic in Metro Manila can be solved by pushing the populace to use the bike. And aside from the traffic, pollution will also be minimized not to...