I understand how you feel sir.
I doubt I can comfort you or help you going through this, but let me tell you this.
I myself suffer from depression, existance crisis, social anxiety, chronic fatigue and frustration, even though I am only eighteen which is a quite young age.
Perhaps I am too young to know what life is, don't know if that is normal or anything, I haven't told anybody this before in hope it will make me feel better and remove weight from my shoulders.
Recently my faith has being shattered
I keep eating and eating to fill the hole in my heart, it is my way to tell people that I am not alright but since I don't gain any weights nobody can see it and thinks that I only have a big appetite or something.
Anyway, you are not alone sir
And I hope you can find something that will help you going through depression, because this isn't something to take lightly.
May God bless you.