if you have no dealings with immigration, chances are you'll probably get away with it on that previous entry.

But its better to just do it. But the process is very fast in Chiang Mai at the airport, It takes like 10 minutes of your time.

If you haven't used all your land border bounces, just do one in Mae Sai for a visa exempt.

It’s always Better to extend. But also changing your flight is another option also.

Get a SETV from a nearby country while travelling South East Asia.

Takes maybe a day of your time out of your travels.

Laos is the best no documentation needed.

Other countries you might need to plan a little and prepare some docs, get a week of accomodation lined up (use agoda and find something with pay at property and have a cancellation period), book flights (ideally with a free cancellation period), and sometimes they might ask for a bank statement.

If you need one you should never rely on them doing one for you and just ask.

Most places do not bother.

no you do not, as long as you are at the same address.

Take the tm30 receipt and departure card down to immigration and get them to update it

you can get an extension on overstay. You just pay for the fine and get either the extension or a 1 week get out stamp

How is that possible, you drop off your passport and copies of visa at immigration along with docs. They process it and give your extension back the same day.

If you’re using another method I would say it’s your responsibility to plan better or pay the fine for poor planning

Only docs from school nothing about flights/accommodation/money