veronica - do not worry about a lack of advice, i think more than anything i just needed to get this out of my system. it damages when you hold things in. And thankyou for your wishes of good luck :)
I think the key is to get some supportive people to help you along. Your mother doesn't seem to be that encouraging towards gaining weight, so do you have a best friend, or at least someone you trust that can help you? Maybe they can "check in" and make sure you are eating, or you could go to lunch with them? Even if they are just there for you to talk to when you feel like you can't do this, or you want to quit. Just knowing you have someone behind you can be really, really motivating and helpful.
Good luck, hun. =)