Learn the major scale in all keys, from any note, skipping strings, in intervals etc. That's about a year long program for you.
With all due respect: There are only 12 major scales. Each has only 7 notes. That is a total of 12 x 7 = 84 notes, to learn the major scale (aka Ionian mode) in all keys.
You are proposing that the OP spend 1 year to learn 84 notes. That is a rate of 1 note every 4.2 days. And then what about the other 6 modes? Are you proposing 1 year for each mode, for a total of 7 years to answer the OP's beginner question?
My proposal is that the OP push a bit harder, to learn at a rate of 7 notes every 1 day.
For example: The first major scale is C Major, no sharps, no flats: C D E F G A B.
Are you are proposing 4 days of learning C, C, C, C, C, C, 4 days of D, D, D, D, D, D, 4 days of E, E, E, E, E, and so on? Or are you proposing C D E F G A B, C D E F G A B, C D E F G A B, every day for 30 days?
I am proposing 1 day to learn C D E F G A B, C D E F G A B, C D E F G A B, C D E F G A B... okay, got it! Tomorrow, let's learn another!
OP mentioned they are curious to start learning about modes. My proposal teaches 2 out of the 7 modes, in every key, in a month's time. Then they will have the tools to study the other modes, learn songs in any key, jam with their friends, or join a band. Your reply of, "it will take 7 years to answer your question, one year per mode starting with major/Ionian" would discourage me as a beginner. Just saying. Hope I haven't given any offense.
