Some of us are great conversationalists. Some of us aren't. If you're like me, you can communicate much better through the written word. There's no pressure. You can let your thoughts flow out onto the page and share what you believe in. When you write, people don't judge the way you look, how you dress, or how you sound when you talk. They only judge your words. It's like a blind audition.
If you've never tried writing down your feelings, try it. It's a great way to vent and figure things out. You'll learn a lot about yourself. It's why people keep journals and diaries. You can look back at the entries you've made and see how much you've grown.
We all have the need to share and be heard. Some people are just a little quieter than others.
That's okay. The world needs more listeners anyway.