I get a lot of email from people who are 50 years old and older and never expected to be unemployed at this stage in their career. Many of these people are annoyed that they are not appreciated for how much they know. Others are bitter, angry or indignant. Often times, these complaints come down to one thing: age discrimination.

Hiring managers know they shouldn’t discriminate based on age, but they do it anyway. Even when the victim has proof, usually a lawsuit is not as appealing as just getting a job. Ridding the world of injustice is a luxury for those who do not have trouble paying their grocery bills — now or during retirement.

I have not experienced age discrimination, but with sex discrimination I have found that bitterness and anger only hurt me. I am certain I have missed opportunities because I am a woman. But in my early twenties, when I was bitter and angry about sex discrimination, I was bitter and angry wherever I went. And my unpleasant personality hurt me way more than any lost opportunities.

Most hiring managers do not discriminate against women, or older people, but all hiring managers discriminate against people who are angry and bitter. And they should, because angry, bitter people are difficult to work with. So if you want to get a job, you need to stop being angry about the fact that people discriminate against you.

It’s very hard to hide anger and bitterness – they poke out of any little opening they can find. The fastest way to get rid of them: Convince yourself that most people are basically good, and when you encounter an asshole, assume he's an aberration and move on.

I have spoken with recruiters about age discrimination, and recruiters say that age is not an issue if the candidate does not make it an issue; enthusiastic, curious, and ambitious candidates are gems no matter what the age. But some candidates don't want to work for someone younger than they are. Some candidates can't hear constructive criticism because they assume it’s ageism. These people are doomed in the job market because they come off looking bitter. Before you cite ageism, ask yourself who, really, is making the big deal about your age.

My mom is a great example of someone who has overcome the age barrier. She is almost 60 but re-entered the job market at 50. She has received many promotions and she loves her job. I am convinced that her success is due, in part, to the fact that she is never angry about being old, and she is never bitter about reporting to someone twenty years younger than she is.

While my mom is just one person, she is a good example. She has a lot more experience in life than the people she works with, and she could lord that over people in a you-can-learn-from-me way. But instead she focuses on things that are new to her — what she can learn, what she can accomplish. In that way, she conveys the bright-eyed excitement that is essential in an enthusiastic employee.

So if you want to beat discrimination, try to ignore it. I am not suggesting that ageism is okay. It's not. But it exists, and you need to figure out how to get a job in the real world. So accept where you are in life and embrace that. If you are pleased with who you are then you will have a much easier time convincing a hiring manager that she will be pleased with you.

For all of you who are disgusted by the rampant discrimination that really does exist, I have found that the best way to change workplace culture is to infiltrate. You can't change workplace culture by whining from the outside, but you can change it once you are part of it. I have always used my positions in management to hire a diverse staff. You can promote diversity, too. Once you get a job.