You can comprehensive advices which are put forward by Leslie Jack and Jeff^ ^But according to your English meaning, I tried to write by Chinese. The different thing is expressing, English is straighter than Chinese.

英文: English:


Advertisements （谎言）
Everywhere          
I hear their sounds   谎言遍布周遭 
I see their faces      

They sell values
They sell concepts
They sell images
                        如花如梦如幻  如烟如雾如尘 （This sentence from Vajracchedika which means the lie    is trying to package and sell himself in the world to attract people and also suggest advertisement is illusory）
of success                             
of love
of beauty
They sell the idea of what is normal

advertisements tell us what we are
And who we should be

When we fail
We are ashamed
We are guilty                        孤烟庭院寒树 伊人为谁红妆？日暮大漠归雁 君子望尽天涯（this point out who wanna Advertisements? Most of women and men, they wanna be beautiful younger and charming........

And we will fail
Failure is inevitable
We reach                                
For the impossible                     

We want to be a person that does not exist
she does not exist, he does not exist
advertisements sell a lie
a lie I will not buy                何人为之？( who need lie? A rhetorical question seems more objective and give people unlimited imagination）

谎言

谎言遍布周遭

如花如梦如幻

孤烟庭院寒树

伊人为谁红妆？（First sence)

谎言遍布周遭

如烟如雾如尘

日暮大漠归雁

君子望尽天涯  (Second sence)

谎言遍布周遭

何人为之？     (Third  sence)

I'm not a poet, but I hope this can help you.
广告
遍地都是
我听着他们的声音
我看着他们的脸颊

他们出售价值
他们出售概念
他们出售图像

关于成功
关于爱情
关于美丽
他们试图告诉你什么才是正确的想法

广告告诉我们
我们是什么
我们应该是什么

当我们失败时
我们惭愧
我们内疚

但是我们终将会失败
因为失败不可避免
We reach
For the impossible（I don't know how to translate orz)

我们想成为并不可能存在的人
她不存在，他也不存在
广告其实在出售谎言
一个我不会购买的谎言

By the way, April, Why do you want to write a poem about advertise?

What a lovely poem! My Chinese version :) I have made some changes due to line length requirement and to sound more like Chinese than an English version translation.  The meaning remains the same.  Your poem is so bitingly the truth.

Advertisements

Everywhere                四处四方 or 广告四处
I hear their sounds      其音我听
I see their faces          其顏我見

They sell values          價值可賣
They sell concepts       构想都賣
They sell images         景意全賣

of success                   是否成功   is it not for success
of love                        是否恋情
of beauty                    是否美丽
They sell the idea of what is normal 賣得是正 what can be sold is the real stuff (normal)

advertisements tell us what we are 它告於我们
And who we should be                    咱们是誰人

When we fail                当成敗时  here 成 means "become" not success
We are ashamed           慚愧自到  shame automatically comes,
We are guilty                歉疚直來  guilt rushes straight through

And we will fail             成敗臨头  failing and looming
Failure is inevitable       失敗未免 failure is inevitable
We reach                      天上微星 literally: tiny stars in heaven
For the impossible         絕望都摘 though impossible, still we want to pluck

We want to be a person that does not exist 欲成那夢裡人   to be the person in the dream
she does not exist, he does not exist          她他全非無存
advertisements sell a lie                            广告只賣謊語
a lie I will not buy                                     這謊語我不買.