[tylerxfury]

i used to be in sort of the same problem youre in
i had trouble with transitions and i hated certain nit-picky musician details
for one, dont be afraid to use the same chord twice... that always makes strengthening the key of the song easier
try something like verse chorus bridge verse chorus outro
unless you want to write non-repeating riffs then you have to conform to some eventual structure
as far as transitions, dont think theory
slide notes or play chords in between the last chord of a verse and the first chord of a chorus... find new chords that seem absurd
sometimes the new mixture of notes may be perfect for the transition you have in your head

best of luck in composing music