What is the fastest way to gain XP across all courses?

Question

please include factors that reduce your XP across all courses

Answer 1

complete the course and do challenges, those are the best ways to gain XP (I thing your codes also help with the XP but not sure), you can loose XP with them too, other thing that reduces XP is using hints along the course

Answer 2

As per your question, I guess the fastest way to earn experience is earning quick badges! Though they're one-time and are taking a long time, they're like ‘the bonus in one go' !
Don't underestimate a badge! There are even some badges that are worth 2000xp+

Answer 3

me too

Answer 4

by do challeges or complete courses