yoast seo won't appear while posting

sir please help my yoast seo plugin wont appear while posting, just yoast seo tittle box but not showing other like seo title, focus keyword, meta description. i have googling since week a go but nothing is relevant.
i do deactivate, reinstall the plugin.deactivate other plugin and activate again. but its just wont work. please help me. im new in wordpress and my english is not good.