Tell him / her you d like to move out due to the illegal short stay renters next door..
If he / she is higher up than the neighbor things will get sorted out quickly.
If next door landlord is a retired police officer who is having " Relatives over the weekend " Best to move out
If you are doing anything illegal / frowned upon such as being here on a student visa or back to back tourist, working online and so on best not to ruffle any feather and move out
Buy a single air ticket to Kuala Lumpur on air Asia to give you a departure date of Thailand within 30 days of arrival. That will clear any potential issues boarding you UK / Thailand flight.
About a week before your 30 days stamp expire go to immigration to get a 30 days extension .
At the end of your 60 days in Thailand go to cambodia for a few days to see the temple and get stamped in again for 30 days coming to Thailand ( same applies, you ll might he asked for a return ticket with a date within 30 days of coming back to Thailand.
You can extend again by another 30 days.
If you don't have a passport showing loads of back and forth to Thailand you ll be fine .
Don't take the habit to do this or one day you ll he refused entry into Thailand