Well, good for you!

First......online

https://outschool.com/online-classes/age-groups/teenagers-architecture?srsltid=AfmBOorN7OVZiPS6_jcuQ7vWzsLSCY1whpp7S885TU73p3c1hrJufhJt

Books? Amazon available below....or use the Google: ) !!

More? A trip to your local library, and a chat with the librarian who will love to help you.

An architect in your area, a letter or email, and a well written note expressing your interest, and what he or she might suggest you read!

I will tag @ Mark Bischak and perhaps he will add more.

IMO actul books that you can go to over and over to understand all there is about basic architecture to begin. I love a book instead of online since it works best for me when learning something new . I still refer to my design books when I have a puzzle to solve .

Yes to books. Pictures are very important when studying anything artistic. I have a Kindle and read a lot, but I buy books on art and architecture in order to see the color photos the way they are meant to be viewed. If you find a book at the library that you love, ask for it in hardback as a gift. If it's a really good book you will read it or refer to it many times like Patricia said.

Also visit noteworthy buildings whenever possible so you can see them in person. Reknowned architects' buildings are like sculpture and need to be appreciated in 3-D. If you're interested in residential architecture, see if you can get someone to drive you around to look at the variety of homes in your city or town. Bad examples are opportunities for learning too. My father was interested in architecture his whole life. Everytime we were visiting somewhere we would drive around to look at buildings. Luckily I found it as interesting as he did.

See if you can find some irl blueprints and renderings to look at...fascinating. Study the details of every building you enter, inside and out. Figure out what style and historical period the design belongs to and how they were built.

Study color theory, light theory. Learn how human behaviour and psychology is shaped by architecture and what works for things like foot traffic and leading the eye to the desired elements, etc.

Develop a curious mind. Search online for interesting buildings and which architect designed them. Look at other buildings they designed and what you like or don't llke about them, that will give you your own sense of style.

I just noticed you have tons of idea books here so you have a great start.

My other idea is to do the drive but also look at homes you don't like and try to understand why .

Check out Coursera architecture classes. I believe all of their classes are free, are online, and taught by university professors.

Also search online for syllabi for architecture class and start reading the books on their lists.

Look up the AIA chapter in your area. Contact someone there and ask them .They should be happy to encourage your education.

At 11 I made my way to the local library and started to read about Greek and Roman architecture. You have to know what came before to understand how it fits with the present.

Start looking at how universities that offer programs in architecture structure their curriculums. See what classes are required like Life Drawing & Art History. It's where art and science meet.

https://daap.uc.edu/academic-programs/school-of-architecture-interior-design.html