Toilets overflow sometimes–we know that. When it keeps overflowing over and over, however, it’s because because there’s a problem only a plumbing tech could solve.
Over plunging a toilet that doesn’t seem to budge can actually do damage to your toilet and your pipes. Your issue is likely a backup in the drain pipe itself, which is something you won’t be able to fix on your own. Don’t worry, a pro can clean a drain pipe in no time.