Hi sir last week i had a exposure with sex worker where i was wearing a underwear and was rubbing her vagnia she was naked and at last she did a handjob to me let me know if i get std or hiv?

If this is all you did, your risk of hiv is vanishingly low. It is possible that you could get a wart or a herpetic infection if you the sex worker was infected with these and then after you touched her you transferred your hand to a mucous membrane such as mouth, penis or anus. You should always take precautions and wear condoms. If you are engaging in intercourse like this, consider Prep.