basic bluesy rock songs are easy to come up with because most just follow the I, IV, V (1, 4, 5) chord progression

for example, you start with a G (I)chord, next you have a C (IV), then back to G(I), then to D (V), then C (IV), and back to G

most rock songs will follow this pattern, this tends to get a little on the boring side, but theres nothing wrong with it

so fool around with that for a while

and isn't hotel california in B harmonic minor?