A time signature of 4/4 meter does not mean that each measure has only four quarter notes. It means each measure has only four beats. These beats may contain half notes, quarter notes, eighth notes, rests, whatever the composer wants, but all note and rest values must combine to equal no more or less than the top number (or numerator) of the time signature
When you practice or learn something it's not all that pleasant or in that case ’sweet-sounding’ BUT in the end, it pays off and you can make something perfect and wonderful. And you may become more satisfied with knowing how to do it then why you learned how to do it.
Something that was helpful for me when learning to read treble clef is remembering that the bottom line is E, the top line is F. (E comes after F). Once you know those two you can always count in any direction for notes if needed.
What Is a MOOC? A massive open online course (MOOC) is a model for delivering learning content online to any person who wants to take a course, with no limit on attendance.