Please tell me what to do as he is in dubai now but evry moment I am worried how to go about things I have 3 kids and he is 68 born

My husband is womanized he keeps lying confidently I need to know how should I get my old husband back to me the way he was earlier

You don't get your old husband back. He is who is. You can't control his actions. The only thing you can control is your own actions.

Normally, we would suggest that you go to counselling. Seeing that you're long distance and you can't even believe anything he says, then it sounds like you can skip that step. If you don't feel that you can trust him, then the marriage is over (see my signature).

You have 3 children now, so the focus and priority should be on the children. An unhealthy relationship with your husband is definitely not in the best interest of your children.

Finally, if he's the father and he's not contributing support, then take him to court to get child support.