Uzun zamandır seni görmüyordum 

1.) Think that you have just seen a person who you haven´t seen for a long time. Or maybe you have just heard his voice, so you made this sentence;

Görmüyordum ama şimdi gördüm

2.) think that you have just realized this; (the event/reality that I haven´t seen you) şimdi aklıma geldi (I have just realized it!)

When you put the past -dı suffix to this, I think we understand either;

1.) that the action has just finished.

2.) that you jave just realized that it happens or maybe it happened and finished.

 Bu kötü oldu. Özür dilerim, AlphaF.

Bir şey eklemek istiyorum; AlphaF ´nin düzeltmesinin yanında, şöyle de olabilir;

Çoğunlukla bir şey kaybetmeye kaybedinceye kadar değerini anlamıyoruz

ya da;

kaybedene kadar

https://twitter.com/beyinsiz_adam/status/256800217372958722

I think he or she is trolling by these weird texts and spamming by the link. Old "search engine optimization" tricks to get some Google rank, they put links on other websites. So Google crawler robots save the links as "safe" or "trusted". 

I think these would be much better.

holiday: tatil / izin

I think these two questions are what you look for:

tatilde misin?  izinde misin?

They both mean "are in holiday / vacation?"

About timing;

İznin ne kadar? How long is your vacation?

or asking ending time:

İznin ne zaman bitiyor? / Tatilin ne zaman bitiyor?

or asking when to start working:

Ne zaman işe başlıyorsun?

or some old type alternative:

Ne zaman iş başı yapıyorsun?

As you see tunci put "ben" twice. If you want to use it with "kendim", you can say also;

...beni kendimden alan..

but it sounds odd and not poetic. (it may have some other meanings somehow)

You can see in the lyrics/poems "beni benden almak" as a phrase a lot, as the person "amazes" you, made you fell in love, etc.

I confirm then

tek = one, alone, without any other.

yaşamak = to live, yaşayacaksın = you will live.

orada = there

Tek mi yaşayacaksın orada?

Does that sound good? Or maybe you would like to see more confirmations?

Two words will be better: "nasılsın" and "malesef"

I think it is good. Understandable for native Turkish people.