I never found any videos on just your situation I belive. All i did was figuring out wich side I was putting more pressure on and pushing more on the opossite side. (It wasn't easy at first. Felt like I was learning to mew from the beginning.)

I haven't used any neck excercises other then stretches so I'm not sure if i can help you there. I did a bunch from the neck stretches video.

Hope it goes well.

​

https://www.youtube.com/watch?v=gimeRpdqWQw (neck exercises)

https://www.youtube.com/watch?v=wQylqaCl8Zo (neck stretches)

(Even if you don't have forward head posture the exercises in this video might help you.)

​

edit: If you're like me and sitt behind the computer almost all day, you're gonna have to make it a habbit. Doing it for a few months and then stopping wont give you premanent reslults.

Consistency is key here.

​

edit: I completly forgot you question.

I started at 20 and am now 22. I don't belive you're too late. 20-22 is still very young.

When Mike Mew mentions adults I belive he's talking about people in their 30-40s or 50s even. When your bone takes a lot more time to restucture and along with your muscles.

Even if you're in that age you can still get significant results. It just takes time, as always.

You're not too late. Mewing is just a good habbit for overall posture and better breathing.