Do you have a pic of your head Mount. I now know a shirt pocket is not stable enough. 
Its similar to this one. Except i got a bubdle of mounts really cheap on ebay that works pretty well.
Do you have a picture of your camera. I may be able to find the accessories you need to help with recording.
If you havent seen it yet this is how mine looks with my gopro. Tons of settings for all sorts of things that ive yet to fool with. Well worth the money in my opinion. ONLY downside is you cant change batteries. Its built in and ya have to charge. But it lasts a good while depending on what yer doing.

Sent from my SAMSUNG-SM-G891A using Tapatalk