Your stories have long been supporting me and they have become the backbone of my life.

[Silverobama]

A few years ago I read the stories of Morris Goodman and Nick Vujicic. I have been suffering from depression and anxiety for many years and their stories always cheer me up. Each time I want to give up, I read their stories again and get inspired. I wrote a letter to one of these persons and in the letter one sentence is:

Your stories have long been supporting me and they are the backbone of my life.

Is my sentence natural?

Edited: improved context.

 

[teechar]

I wrote a letter to one of these persons them

Your stories have long been supporting me and they are the backbone of my life.
Is my sentence natural?

The sentence is grammatical, but the underlined part sounds extreme.

 

[tedmc]

How about this?
Your stories have been a great inspiration and a beacon of hope to me.