You should be getting a teacher of the visually impaired to teach it to you. This starts when you get an IEP through your school. But if this isn't an option yet, Hadley offers distance learning courses (hadley.edu).

I can't advise you about learning braille, but I strongly recommend BARD for content. It's a service from the Library of Congress.

https://nlsbard.loc.gov/nlsbardprod/login//NLS

I would first get a Braille slate and stylus. Websites like Amazon and Maxiaides sells them at a low cost. You can get a free Braille slate from the NFB. Half of learning Braille is memorization, so I would make flashcards. The other half is building speed and fluency when writing and reading. There are government organizations that can supply Braille books for free.

Please contact the Georgia Lighthouse.

https://lionslighthouse.org/

Also the Braile Press.

https://www.nbp.org/

I can teach you braille if you want. You can direct message me. I also would recommend trying to get involved with NLS Vard because they offer a wide variety of audiobooks for the blind and visually impaired.

I'm a sighted person and there are better answers than this, but I enjoyed learning from this site that teaches transcription: $1 and I used this $1 to practice reading braille books from the library.
Good luck! Teachers and IEPs are definitely good

Which country are you in?
State aid is very country specific.

Do you have money to buy a braille display of some sort?

also, start as soon as possible--the younger you start the better!

I made a video about my experience learning reading braille. The biggest thing was believing I could do it.

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$1

I Basically second what everyone else is saying, ideally if you want to become fluent in reading braille then you need a teacher. I am totally blind, have been since birth and braille to me is like print to sighted people so honestly I can’t give too much advice, other than stick at it, it’s tough at first I even remember that much but it would be well worth it in the end. Braille displays are useful, but if you’re put off by the price an orbit reader might be a better option? They’re like a smaller/cheaper version of a braille display. I’m from Britain so not sure what charities are like over where you live, but some charities should be able to fund you a bit of money to help you get hold of equipment/teaching Don’t let your vision affect your love of reading, start off slow and steady, and audiobooks are very very handy especially when you want to chill. I understand audiobooks aren’t for everyone but it’s one thing to keep in mind. One thing I will advise is be patient with yourself when you start learning, it’s like learning to read from scratch again so just be kind to yourself. Sending all the best of luck in the world.

There are "centers for the blind" in most cities. They offer free classes and devices.

Have a friend who's blind willing to teach you. Otherwise having a teacher could be costly. Unless they are paid by the state or country and have no problem visiting all the time. Will tell you straight off it's harder for adults. Was easier for me cause I was under ten and loads of free time. I'm not even blind and was just interested