How do I come up with a chord progression?

Question

I hear professionals rocking out in their songs with good riffs which are essentially just combinations of power or standard chords. How do they come up with catchy ones or at least ones that sound musically pleasing.

Answer 1

Practice, practice, practice.  Also, listening to the greats that have gone on before you.

Answer 2

learn your keys and chords  that go with them for instance key of A  is a d  e their  are 11 more mail me and i'll explain