OK, please help… Correct me if I’m wrong
And let me know what happens next ??
So I enter Thailand, they give me a tourist visa for 60 days and then I have to extend it for 30 more… before those 60 days are up… costing me € 1900..\
This is where I get confused…?
From what I have read, I understand that I could do some kind of border run and coming back into Thailand I can get another 60 days and then extend that 30 more days. ??? For a second time… how many times can I do the 60/30 extension? 
At the end of the two 90 day periods … what happens??? do I just apply for an extension after doing a border crossing every 30 days or can they give me another tourist visa???…
Your guises input is very much appreciated. Thank you. !!!AW!!
TLDR : Answer Summary
When entering Thailand, travelers typically receive a 60-day visa exempt stamp. This can be extended once for an additional 30 days at an immigration office for a fee of 1,900 baht. Travelers can then perform a 'border run' to re-enter Thailand, receiving another 60-day stamp followed by another 30-day extension. While there is no official limit on how many times this can be done, immigration officers may question frequent entries and could deny future entry if they suspect misuse of the visa rules. For longer stays, alternatives such as the DTV visa or METV visa are recommended.
DTV VISA RESOURCES / SERVICES