don't feel you are alone many guys go through some kind of depression specially if there was mental abuse. try to throw out the negative and be positive. good luck take care of ur self

start living your own life..
what did you do before you were married ?

Forgive her totally and consider reunion. You are not getting sleep because you love her. Go and tell her

I do not have any experience and knowledge about separation Sir,
but I do know about pain.How hard it would be.And can't even sleep.

Lonely-meaning:

you wish someone is there that you can talk to
you wish someone is there that you can hold on to
you wish someone is there who can take your mind
away from dwelling on things,
you can't do anything about and is uncontrollable.

you wish there is something you can do,
to stop from thinking and feeling.

If I may suggest:

Do not go near any alcohol.
Make an effort to not think of what you could have done to change the outcome.
Do not make impulsive decisions.

Stop thinking of yourself first - the pain will consume you.
Think of the people first, that are affected of what just happened.
Kids? Parents? Close Friends?
They are worried about you.
Do not impose on their loyalties and sympathies.You will unintentionally hurt & confuse them.
Try to distance yourself from them, and see first what is need to be done.
What needs to be prioritized.
By doing that, you stop yourself from feeling your own pain.
You have something to focus on.

By the end of the day, doing that, you will be
too tired and emotionally spent, that your body would demand sleep.

Sleep is important to stay sharp and healthy.
Health is a weapon to survive.
You owe it to everyone who cares for you to deal with that pain,
without being destructive to your love one and to yourself.
You owe it to everyone who cares for you and needs you to survive.

Live one day at a time.
Survive. Thrive.
Focus on finding balance.
Be impartial to your pain and to the people who are watching you
dealing with your pain.

Live. Always choose to live, no matter what.
Hope. Always choose to hope, no matter what.

I know the feeling, just divorced earlier this year and we didn't even think we were heading in that direction until last December. I just remind myself, why I didn't want to be married to her anymore and that makes me feel better.

And as others say, get out and do stuff, especially if there was things you like to do but she wouldn't approve. I'll take my motorcycle down to a local bike night pub and engage in conversations with other riders. I signed up on FB, which I was forbidden to do when I was married, but she was a member on every social site (for work, she said). On FB, I reunited with a lot of high school friends, male and females, that takes me back to the good old times of high school. And some of us, even make plans to meet for dinner and drinks. And all of this in just a few short months of finalizing the divorce.

they have over the counter med to take for sleep ... and if on any other meds ask the pharmacy if you can take it ... so you know it won't clash with other meds ... this will hurt for a long time ... and is best to be around those that support you ... and get active with something you think u might like ... church ... or volunteer... read if you like...go to the library ... do something you could not do before becouse u may not have had the time ... good luck men and women alike go through this ... but just don't drown your self in sorrow ... get help if you feel that way ...