@Skye **************
, you need to be 50 or older for retirement .
Without knowing your departure date it is slightly difficult to work out a plan of action for you .
However this is what I would do .
Get a SETV ,this is good for 60 days , you then need to go to your local immigration office for a 30 day extension .
Before this expires you will need to leave Thailand again and get another SETV , you will probably need to get another extension after that as well .
If you need more time you will need to come back here for more advice .