Indecisive traveler finalizing plan

This itinerary is so insane that it will represent natural selection at work if you ignore all of the advice you've gotten here, and attempt it anyway. Aside from the ludicrous logistics, picking Kekova and Fethiye as the major highlights of Turkey is suspect in itself. You aren't going to "see it all", you're going to suffer through a strung-out unrepresentative fraction of it.
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If you want to overdo it in a week, fly to Izmir, bus to Selcuk, bus to Pamukkale, bus to Kas, bus to Bodrum, and fly back to Istanbul.

Sleee27 - please post how your trip went after you get back tomorrow. I for one am curious. Cheers.

Hello again, everyone.

Thank you for your advice and interest. Here's the updates. Ha-ha.
We came back to Toronto the day before yesterday finishing our trip in London, England.

Our initial plan was like this...
Istanbul (night bus) - Cappadocia (stay 1 night and leave the next day by night bus) - Antalya - Kas (1) - Kekova - Fethiye (1) - Pamukkale (night bus) - Istanbul (2)

How we ended up was..... (drum please... dododododoooong......)
We left Toronto on May 11, arrived in London on May 12.
We stayed at easyHotel and flu to Istanbul at 6:50 am.
We arrived Istanbul around noon on May 13. We walked around the city and took a night bus to Cappadocia.
We arrived in Cappadocia around 8:30 on May 14 and started a day tour @ 9:30 finished by 6. We stayed one night at the Traveller's cave pension and rented a scooter and went around the region on the next day. At around 9 pm we left Cappadocia by night bus heading to Antalya.
We arrived in Antalya on May 16, dropped by at 700 years old hamam in Antalya had lunch and took a bus to Kas.
We arrived in Kas around 5 pm, checked in at Ani Motel for two nights.
Next day, on May 17, we took a day tour to Kekova island.
Early in the morning on May 18, we took a bus to Fethiye to go to Pamukkale. We arrived in Pamukkale around 4. Walked around travertines and Hierapolis came down and had dinner. Then we took a night bus to Denizli then to Istanbul.
On May 19, at around 9 am, we arrived in Istanbul, checked in at Mavi Guesthouse for two nights.
We went Grand Bazaar, Spice Bazaar, walked over Galata bridge, went up Galata tower, went to the fish market, and lucky us, that day Aya Sofya and the archaeological museum was free.
The next day, we went to Topkapi Palace, took a Bosphorus ferry, went to Beyoglu, Taksim area, came back to our motel, had few drinks with other travellers.
The next morning, we left to London, stayed two nights and came back to Toronto.
Voila!

I don't like being misunderstood. Everyone is different and everyone's situation is different.
I didn't think Turkey was small so I can go around quickly, or I'm young therefore I can see them all or there are not enough to see.
I think I am still young but unfortunately I don't have the luxury of time and money. This travel might be as crazy as it may sound, but it was a good one for us. We enjoyed a lot. We met really good people and loved Turkish people. I wish we had more time and money to enjoy it more, but it was the most we can spare. I can't just sit around and complain traveling cost too much or I have other commitments, I can't afford to travel, or I just want to relax in the resort in south America. I am not a student in her summer break. I don't get a 30 days of vacation entitlements -I only have 16 this year-. I am just a graphic designer, not an MBA. So, please, don't accuse me for having a little more crowed plan than some other people.

Thank you everyone for reading this. Actually, this posting was quite enjoyable as well. ;)

I'm glad you enjoyed your trip. No one is going to criticize you for following your own plan. You asked advice, you got some, you made your decisions. Good for you - that's exactly how things should be done. Obviously your plan wouldn't necessarily appeal to someone else but who cares? I've often asked advice on this forum, read all the suggestions and then made up my own mind. There's usually something really valuable to learn, even if it's that you just want to do what you want to do. Turkey is such a fabulous country - how can you not have a great time?