Went solo camping to find myself, found an older man instead

Probably one of the riskier encounters I’ve had. I‘m 22F, and work full time. My work shuts down for two weeks over Christmas, and I was needing an escape after becoming dangerously burnt out and overwhelmed. I decided to book an extra week off and take my swag and my ute around the east coast of Australia and get immersed in nature. Was deciding where I wanted to stay the night before I would go, and discovering some of the most gorgeous free camps around the place. One of the locations was so nice, I decided to stay another night. There was nobody else there the first night, so I was enjoying the sun, the birds and the dam I was camped near. On the second day another car arrived, and a man set up his camp about 200 metres from mine. We were both keeping to ourselves at first, and I went for another swim in the dam. Later that afternoon I was reading my book and getting some dinner prepared when he wanders over with an extra beer. He’s 52 and ex military. We end up chatting and making good conversation, until he starts complaining about his divorce + how he struggles with his teenage daughters. (even told me a story of how he chased one of their boyfriends with a machete !?) Prooobably should’ve been a red flag, but I went no contact with my dad right after I moved out at 18, so it definitely struck a chord with me. We keep drinking our way through his beers, and by night time I‘m quite drunk. He turns to me finally and says how hot it would be to have sex with me, and how it would be totally fulfilling his fantasy of sleeping with a much younger girl. I must have been feeling stagnant, stupid and spontaneous so I follow him back to his rooftop tent and we end up having sex. Very minimal foreplay, he doesn’t last very long and as soon as he finished he just wanted to cuddle and go to sleep. The worst thing was that he had a condom, but said he was struggling to stay hard with it on and took it off and kept going before I really understood what he had said to me. He didn’t finish inside me at least but I was very concerned about STD‘s the next morning. (When I got home I got tested and was clean thankfully) I was feeling disappointed the experience wasn’t better, as I’ve always been interested in older men, but I was hoping he would be more experienced in knowing how to make a woman feel good. So overall just felt hungover and used. He asked for my number so I gave him a fake one, packed my camp up and headed to the next spot. Did I learn anything from this? Maybe just that I would not survive very long in a horror movie. And that maybe I should plan camping trips around going to places with more people in case the situation went worse than it did. Can‘t tell my friends about this because I know they would slut shame me/judge me for being into older men and for sleeping with a total stranger, so I guess I came here to shout it into the void.