Gentlemen. This is a person asking for helpful advise having fathered a child and taking responsibility.
This is not the time and place to showcase one's arithmetic or biological knowledge or be cynical. Most of it based on false assumptions. He clearly says that he has a
****
old child conceived when he stayed with his girlfriend in Turkey. I am not sure which part of it those with great knowledge of English cannot perceive.
It would be nice to understand and be sensible and kind too in order to help people.
He has overstayed and punished already. Perhaps more than he bargained for. Also true he has asked this advise in the wrong forum particularly with the unhealthy, useless, vicious comments.
Kerem Velli feel sorry for your situation and the abuse you are facing here. There were some helpful suggestions about taking legal advice and advise from Royal Thai Embassy in your home country. There seems no lawyers in here. Check Mark Bannister's message too if that is suitable for you.
Wish you and your child and family a early reunion. Take the situation as a learning. Don't let it demoralise you. Happy to see a father with sincere responsibility.