Can anyone help advice me on where I could find a batchelor apartment in Bangkok that is not too expensive yet secure and clean.

What would I expect to pay for it per month?

Do people share accommodation like they do in the UK? Is there
a list anywhere of people looking for room mates?

Has anyone shared with a room mate they did not know?

I need a bathroom and kitchenette.

The lounge can be a bedroom like in a bedsitter.

As I am no longer a young person I need a secure and clean friendly atmosphere to live in.

Any suggestions would be appreciated.