I would try diff areas for an hour and ask if theres a windy about, you will eventually drop on an area.
I was scared shotless of canvassing for ages, last week i bit the bullet
first area got 1 in 2 hours, thought the same as you
next day 30 mins 4 custies on one cul de sac, turns out theres another windy on there but only does a couple of houses, any way ive now picked up 8 on there, theres about 50 houses on this street, ive only spoke to 18 custies and got 8 so evertime im down there im gonna knock the rest till ive spoke to everyone
Just spend 30 mins or so in an area, move to another area,, once you pick up a few do it more methodically write everything down whos in whos not etc and re canvass