I understand. I too have had a mask my whole life. I have always been the strong, energetic, good, enthusiastic person. Always doing okay. A couple of years ago I couldn't do it anymore and kind of collapsed. I'm kinda old and wish it didn't take me so long to allow myself to be human. Most people have emotions that go up and down and that is healthy and human. I realized I needed to start showing some of the less fun emotions to my children to be a positive role model about not having always to be so "perfect" or always be in a good mood. It has not been easy in fact it is painful to tug at that mask but I am beginning just now to see it is worthwhile and healthy.
Believe in who you are and allow others to know you, not just the happy you.