I am tired of my monotonous life.

Don't live a life which is monotonous, mediocre, meaningless.

However, I've found that listening to a computer voice for any great length of time can be monotonous.

Any organization that has not provided democratic mechanisms for change and renewal tends to age and become monotonous and ineffective. This aging and dullness became most evident in the past few years, as Fatah first lost the 2006 legislative elections to Hamas, and then its presence in the Gaza Strip.