Snake bite in overgrown Garden Dream Meaning

"I was walking through a garden, or what my brain called a garden even though it was more like wild overgrown brush, and I knew there were snakes around. People had warned me. I was being careful, or thought I was, stepping slow, watching the ground. And then I felt it--this sharp pinch right through my sock, on my ankle. Didn't even see it happen. Just felt the bite and looked down and there was this little brown snake already slithering away, completely casual, like it had somewhere better to be. My first reaction wasn't pain. It was this cold drop in my stomach, this "oh no, oh no, oh no" loop. I grabbed my ankle and sat down right there in the dirt and the first thing I thought was "I don't know if it was venomous" and the second thing I thought was "my phone's in my jacket" which was hanging on a fence like fifteen feet away. So I crawled. Actually crawled on my hands and knees through the brush to get my phone, and I remember being annoyed the whole time that I had to crawl. Then I was trying to call someone--911? My mom? I genuinely can't remember--and my phone kept pulling up the wrong contact. I'd hit one name and a totally different person's face would appear, smiling at me from the screen, and I kept getting angrier and angrier at the phone like it was doing it on purpose. My ankle was throbbing by now, warm and tight. Then things got blurry and jumpy. I was in a car and someone was driving fast but I couldn't see who. I was in a waiting room filling out paperwork, which is insane, because even my dream self knew you don't fill out forms for a snake bite. I kept writing my name wrong. The pen kept slipping. A TV in the corner was playing a cooking show. The last clear thing was a doctor looking at my ankle and saying "you should've come in sooner," and me feeling this huge wave of guilt, like I'd failed a test I didn't know I was taking. I started explaining about the phone, the contacts, the crawling, all of it tumbling out, and he just kept shaking his head slowly. Woke up grabbing my ankle. Still felt the warmth there for a second, phantom stuff. Spent a good minute just sitting there wiggling my foot to prove it worked."