I'm assuming you're in the US as I don't recognise those brands. Have you tried being professionally measured? Here in the UK shops like marks and sparks do a free fitting service as a lot of women don't realise they are wearing the wrong size 1 reply
My jaw used to click and sometimes painful to open fully. Turns out I clench my jaw/grind teethin my sleep. Dentist gave me a mouth guard and now lots better. Started in my 20s I'm 40 now xx reply