Ask HN: What does living by yourself really cost?

I'm a HS Grad, Looking to "rough" it for a couple months to a year. I want time to think, explore, read, write, code, learn more about myself. Basically, to have a large amount of down/alone time.

Now, I'm unexperienced in real life (since I've lived at home all my life), so I can't possibly plan for all the potential expenses.

Therefore, I have three questions:

1. What does it cost you to live frugally per month? 2. What are your suggestions for living frugally? 3. What are your general suggestions for a time like this?

I plan on using a bicycle for transportation, eating beans/rice, ramen, a few veggies, etc.

I can get a job. I just don't want a 40 hour/week job, a dirty job is fine. (I'm smart enough, I have coding skills, etc.)

(Obviously, housing costs aren't the same across the US, but I can get a room for <$400/month, utilities included.)

Thanks HN, you've been great inspiration to me!

-ls