Job Interviews

My goodness.  How many job interviews must we try?  I have so much knowledge and skills, it’s rediculous.  I’m not bilingual, a minus in my job market.  I’m not young, another minus.  What must I do to let employers know that they would get what they pay for.  I am the best at what I do.  I am dedicated, loyal and have a very good work ethic.  I feel I’m being discriminated against due to age, although only 52.  Anyone else have this experience?