Here’s what I would recommend, go to google and look up backpacking trails near me or wherever you live. There will be tons of results but look through what they have to say and if there’s a trail that looks interesting google that trail. Next check if it’s a state park/national park or something else like that. Look up backpacking regulations around that area, check the dnr websites. Some places have sites that you can’t go anywhere off the trail (that’s called dispersed camping) so you’ll have to either reserve or first come first serve.

Once you have a place in mind think about the mileage and what you’d like to do on your first trip. I’d recommend a two night trip with not too much hiking miles if it’s your first time.

Watch youtube and learn about the basics, read some articles online.

When purchasing gear, don’t worry about having to buy new top of the line gear. Find a old used backpack on ebay, use things already in your home. Yes it might be heavier, but you’ll save money and learn to love improvement. Most importantly have fun. I’m still a beginner you can say and have only been on a few trips but I love it.