It will take time... Remember that and don't rush!
validate and don't keep track. Don't let her use your past problems against you unless they continue to be issues. Same with you; You can't hold this over her head.
If she's ready to work, she has to show you that. That is where the trust will come from.
Remember, this is a NEW M, not the old one. Stay firm on your personal boundaries and keep doing the things that got you here because they are part of who you are and who you want yourself to become.
It's good to keep her a little at arms length for right now, I think. Let her pursue you for a while. She needs to prove, and you need to see proof that this isn't just words talking.
Just remember, there's things she needs to see from you as well, so when you start feeling loved, you need to be able to make her feel loved, too.
