Umut, I'm sorry about your mother. At such times of crisis in one's life, it is all too easy to consider escaping, fleeing to anywhere, just to be away from the sorrow and unhappiness you must be feeling. I write as one who did this, many years ago. I chose Australia. A good place. In the 1970s it was a small slice of earthly paradise, somewhat changed now, stupid politics and greedy business have done untold damage over the decades. But still, in most ways, a good place. I have never regretted my choice made 40 years ago.
Google it and see for yourself. Heaps of good information on the 'net for you.
Thinking in common sense terms, I particularly consider the advice of wy21 and georg1nik to be spot on. Many others also. A few nits. If someone won't live somewhere, why on earth would they advise you to?
If I was in your situation, I would do this. Batten down the emotional hatches, stay put for six months to a year. You will need at least the former to fix up all the loose ends, financial and legal, anyway. Make a new life plan and a financial plan and start to work on it. Trim down your possessions to those who want to keep, the basics only. Don't dispose of anything photographic at first.
North America is in NO WAY what you believe it is. Yes, there are pockets of wildness, poverty, despair, violence. Also many places without. At my age, I won't relocate, not in this lifetime, but if I were faced with making another choice, I would opt for New Mexico. A stunning place. Unique in everything.
Avoid corrupt Asian or Pacific countries. My recent decision, to spend time living in Asian places I first visited in the '70s, has opened my eyes to the realities of trying to establish a new life in an Asian environment. Without careful planning, you can easily end up at the mercy of two month visas, and corruption when you try to renew your visas, or flying out to places like Singapore or Malaysia for short stays, then back to your chosen Asian destination, to start the process all over again. Three day visits to Singapore are expensive, and the excitement quickly fades.
You have a lot of choice but you need a clear mind and balanced emotions to make a decision that is best for you in the long term.
I think you already live in a beautiful country. I have many Turkish friends in Australia, and have visited Turkey several times.
Is there somewhere in Turkey you would be happy relocating to and making a new start in? Much cheaper for you, and less emotional stress from the need to readjust to a new culture.
You feel sad now, but remember, you have the luxury of choice, and there has never been a better time in this world to relocate and make a new start.
Meantimes, keep photographing!
All the very best to you in your future decision making. I trust you will make a good choice, and find happiness.