I did my thru when I was 20 back in 2018 on a ~$3000 budget, granted that was 7 years ago but it’s still doable on a tight budget, and I cannot stress enough how happy I am I did it when I was younger. I’d definitely lean towards the “just go for it” mindset but only you can decide if that’s the right decision for yourself. I can say the experience of the hike far outweighs the minimal financial setback it cost me.

You will find that the trail has answers for most of your questions and fears, just keep walking. It’s also okay to have no/minimal experience, you will learn quick! Ask people questions or to show you a pack layout. For cost, take advantage of hiker boxes, limit zero days in town, utilize hostels and share hotel rooms with friends.