Std ? STI ,HIV ,or AIDS

Hey guys I need your opinion or feedback anyone. I’m currently 17 a senior in hs and is soon going to be 18 🙏🏾umm I did a little mistake back in my 9th grade year which I regret and kind of hate myself. I was friends with this guy and actually liked him but honestly didn’t think the person he is now. We had intercourse which I didn’t want to do but was peeer pressured because I didn’t want to hurt his feelings mind you I’m young and just in fear even when it came to boys sex , drugs etc but after I did it with him I didn’t feel well after that I started having this burning itchy feeling and got a rash in my vagina which went away after a couple days mind you I’m young so I don’t really know to much about yeast infection , stds etc so I’m thinking I’m going to be just fine but months after months starting my sophomore year is when I realized something is wrong. I started to have fishy smelly discharge , a lot of discharge. And sometimes smell would change like from garbage to yeast to old fish etc. so I started to ask google for answers and all I saw was BV stds etc. so now I’m scared and I confronted the guy my junior year through text and he said idk what your talking about I’m clean and I don’t have stds you must of got it from someone else I was totally sad because I knew he was the only person I did it with so he’s like omg it’s beeen 3 years and now your telling me this “bitch bye” so yea then he showed me his recent doctors note which said he was hiv negative. But yet idk if he could’ve had an std right when we did it and got it cured after so yea i just left him alone about it since he blocked me on everything and got so furious because I told him and his friends that he has stds. But yea I’m a senior now and plan on going to the us military (Air Force) and I heard you can’t join if you got a std or hiv/AIDS so I’m kind of in fear because the military is my only hope.so yea this summer when I’m 18 I’m going to go to a local doctor and get tested for everything and get cured before joining service please pray for me guys Ik you guys are wondering why I waited 3 years to get tested or even get checked well I was scared and didn’t want my parents to think i was doing such thing but yea pray for me guys ThAnk you ! Give me some feedback in the comments.