I've recently made a breakthrough, and I thought I'd post about it for you guys having some issues with your singing!
I've been working with singing success for about 4 years.
What I've discovered recently is that I've been changing the shape of the inside of my mouth while going through my mixed voice, resulting in pushing my chest and straining all parts of the voice.
To fix this, RELAXATION is so important. Just relax your mouth (keep it just the way you have it when you're singing notes that are easy for you to sing). This was one of my worst habits.
Also, when you're working on the lessons, remember light and right at all times! Light and right means easy and relaxed, instead of pushing.
Allowing the voice to go from chest to mix, and from mix to head voice is not easy at first. But relaxation is truly the best answer! If you're still having a lot of troubles with an exercise, re-listen to the track explaining how to do the exercise.
I hope this helps anyone who's having troubles.
Chrystal