What are the options for extending my stay in Thailand after my ed visa ends, and how can I avoid complications?

I am currently on an ed visa (martial arts, originally went to Vientiane) which ends around end of November. I have a UK passport.

My plan was to get another ed visa (Thai language). I've heard in Vientiane that must be at least one calendar year after my previous.

However, I plan to only stay until June next year, and am wondering if there are simpler options? Could I get a 60 day tourist visa, then extend in country for 30 days, and do that a couple of times? Or am I likely to be fighting the system?

This has been my first year in Thailand so my passport is fairly clean.

The positive of the ed visa is I don't need to hang around borders to get back into the country. I go to immigration every 90 days and I'm done. However, is perhaps a bit expensive considering I won't be here the full term.

Would appreciate any advice.