Hunting

So I’m 20 years old, the last time I went hunting was 7th grade because I was diagnosed with an autoimmune disease that caused raynauds basically making me allergic to the cold. Well today I’m going hunting again for the first time since, and I’m scared shitless. I’m scared I’m gonna get cold and ruin the hunt. Or that I’m forgetting something vital about hunting since it’s been so long. I feel like I’m gonna ruin it and i kind of don’t want to go.