I’m currently trying to learn correct pronunciation of th phonemes (/θ/, /ð/) since with my th-fronting I can’t pronounce words like thorough or thief.
Basically every online lesson states that I should stick my tongue between the teeth. For example, this video.
I tried that approach and after some struggling I was able to somehow pronounce single words like think, that, or the.
However, I can’t pronounce these words in the middle of the sentence as they break my breathing. I watched that video more closely and noticed that the woman did stick her tongue on the when she tried to emphasize correct pronunciation at 0:20, but she did not do this at 0:40 (or at least I didn’t notice it).
So the question is, are native English speakers actually able to pronounce in single breath phrases like at the beginning or what the heck “correctly” — that is, with sticking their tongue out?
I also found an article that proves my suspicions. It states
Don’t Place Your Tongue BETWEEN the Teeth – It’s WRONG!
but it’s too “unpopular” (video has only 1k views), so I’m not sure whether I can trust it.
Also, does UK/US make any difference here?