Earnings as an ASL interpreter largely depend on one's level of experience and place of work. In May 2013, the BLS reported that the highest paid interpreters and translators worked for engineering services, office administrative services, and the federal government.
The length of a self-cleaning cycle varies greatly depending on the oven. It may be as short as 90 minutes or as long as five hours. The amount of time can vary on the same oven depending on the settings. For example, some ovens can be set for a short cleaning cycle for light soiling, or a long cleaning cycle for heavy soiling. Most units have a cycle that will run for at least three hours.
Just set the time and let it do its thing. I can cook on my stove when the oven is cleaning. You should have a timer to set when you want it to cut off and stop cleaning. I set the timer for two hours later after I start the cleaning cycle and it seems to clean it perfectly. It turns off after that on its own, but is still on lock until it cools down.