Were can i find a cheap weekly motel in Anaheim or Buena park?

Why don't you try to share a flat? It can be less expensive and allow other ways to save money.

A cheap breakfast in a cheap hotel = $10.00 Same breakfast by your own... $3.00 (disposal dishes included).

cheap is a relative term and you usually get what you pay for. extended stay america has a couple locations in that area, but the cheapest ($50 or under a night) would be red roof, ramada, golden state, super 8, america's best, or day's inn.

hotwire.com and priceline.com will have your best prices :)