Help sharpening flex cut micro gouges?

I have some carving tools that have dulled past what the slip strop can address and I don’t know how to sharpen them, if anyone has experience with this I would really appreciate some help. I really don’t want to mess them up, they are my most used tools for work.

They also sent me 2 deep U gouges because the first one had a minor manufacturing error so if we can fix that one up you can have it for helping if you’d like