If what you're dealing with scares him off, then you deserve to have better honey. You deserve someone that will support you in your hardships just as much as they smile with you during your best. Your mental health comes first, and it is never anything to be ashamed of.

You can't scare the right one off!!! And off you did then they aren't for you. If they can't handle you at your worst they sure don't deserve you at your best!!!

I’m really bad at words too. I find that writing things down to get the wording right beforehand REALLY helps. That’s also why I prefer to text as opposed to in person or over the phone conversations. —Kaminari Denki, fictive/imprint alter of the Pluto System

Write yourself a script. When you start the conversation, tell him you’re not great with words, and see if he’s willing to also work off of that script. That’s what I did with my boyfriend a few weeks into our relationship, and while he felt a little weird about it, I was able to tell him what I deal with and how I cope with it, and he understood pretty easily. We’ve been together for almost 3 years now and have used the script method to deal with difficult topics on a few occasions.