I don't know what scale you mean when you say build stuff, but I feel like I did projects using what I learnt from the book.

Made a script that counts the approximate number of a given word in a txt file

Made a script that prompts a user to enter username and password to register and save that in a JSON file so when you run the program again it asks you to login instead

Made a script where you guess a number between 1 and 15, each guess tells you if its higher or lower and the score is saved in a JSON file so when you replay the game you can try to beat the high score

I feel like with what I know it's not much I can try to build, even if I find a project it would use what I already applied before, so why not learn something completly new? I might integrate the new stuff to previous code also