How to do hook-ups?

Recently I have been feeling alot more stressed and want to hook up with someone but the issues is IV just hooked up with someone before off like a app or anything, IV always been quite scared of sex or embarrassed and I don't really know the do's and do nots and how to approach things or where a safe place to go is or even how to get ready before hand as I am quite tight, what advice can you give for someone in my place who only Recently has started to lose there fear of sex and really wants to try hooking up?, I don't have any other gay friends I can do stuff With and i still live at home