Life as I know it.. has vanished. 

The fact that you share the same house is making this even more impossible for you. It's just too much, too hard. You need to face mourning your relationship, and you can't fully do that when you have to see his face everyday.

Kev is exactly right on this. Right now, the ball is in your court, so to speak.  You have to be brave enough to make the changes that scare the hell out of you, but will ensure a better life.

Everyday, we all face challenges.  I know this is difficult, but trust me when I say it will get better.  And it will.

I want you to get a hold of yourself and toughen up!  The way we handle our problems define who we are.  This is your defining moment.  The difficulties you are facing now, will strengthen your mind as labour does the body.  You must look after your health very well.  Keep yourself a responsible person, looking after commitments and such.  Keep busy in worthwhile pursuits.  If possible, get anti-depressants which are non-addicting and seek counseling.

You must separate from him or else you will suffer needlessly.  See an attorney to ensure financial support for you and your child.  It is time to put your emotions in a box for a while, so you can do these things.  Your child needs love, security and yes, proper excitement to flourish.  You must be the strong one to accomplish these things.  Be prepared for a hard year, but always know that you will be OK, and I mean OK, because you will.

There are always positives to any situation.  You can be happy to be free of someone who doesnot love you.  You are entering a period of change, and change is the law of life.  You will be a more empathetic, mature person after all this is over.  You WILL find someone who loves you unconditionally.  Success is never a result, it's always a goal.  So try to have reasonable goals in your life, starting today.  Start, by starting.

This is an opportunity to learn self-reliance, which is the greatest gift to give your child.  The reason you feel the way you do, is because you have values.  That is a good thing, pass your values onto your child.  Eventually you will regard everything, even your mistakes, as experience.  In time you will find enthusiasim for living, which will make you a very capable woman.

When difficulties come, so do opportunities.  This is your life, your time to adjust and grow from this experience.  Never give up, always think positive by dwelling on the good in life.  You can certainly do this, I know because I have.