You should say you're still unable to find a suitable wife for you, and not be alone forever, you must have a family, have a wife, a child, your life will be perfect.
You should say You can not find a suitable wife for you, not to be alone forever, you have to have a family, a wife, have children, your life would be perfect.
You should say You can't find a wife that suits you, not to be alone forever, you must have a family, having a wife, children, your life will be perfect.