The field of software engineering is very interesting. If you are curious, then every single day you will learn something new.
You will learn more by building projects than by reading a book or watching a video. Learning one programming language will open a lot of opportunities in terms of learning and building.
People say that after a while you won’t be able to be in the field of software engineering. My take on this is: if you are curious enough, and love to code, then there is no age limit. You can keep writing the code and build projects that you like.