Your gut reaction being to go immediately to 100 miles an hour is probably the ADHD. Most of us hyperfixate really easily and jump into things with both feet. That said, in my personal experience, we also tend to hyperfixate on hobbies in a certain “category”. If your a sports person, or hiking person, or craft person, or theater person you’ll regularly hyperfixate on things that surround your “main” interests. (Sometimes we also go wildly off script but most ADHDers I know eventually circle back to their core interests.)

That said it’d be smart to get a basic understanding of camping in first because you can use it as a springboard for future hyperfixations. This was you’ll have the basic knowledge and equipment when your focus changes to ultra light, or extreme conditions, or rafting to camp spots. Etc. There is no escaping the dopamine hyperfixation train so you just have to learn systems that help you do it with minimal negative consequences.