Is that the best way of getting set up by just knocking on doors,
Yes
It's a numbers game. The more you knock, the more jobs you will get.
You might have to knock on 50-100 doors to get one job. Can you handle that? If not you should stop to think if this is for you.
In 2 hours you can knock on 100-200 doors
You need to do that every day, including weekends when you should knock on at least double that amount.
Keep a record of all the ones that weren't in and go round them all again.
If you have the stamina and determination to do that, you will build a good round.
Best of luck