i've got the lyrics down, those come pretty easy, but i cant find a chord progression for guitar or melody that works for me, any tips?
A good friend will bail you out of jail

A true friend will be sitting beside you saying ''man, we fucked up but we had it goooood"
There's always a chord progression for a certain melody . First of all i could have helped u more if i knew what genre u are aiming for. Maybe it's not happening because you are not trying to sing it in right key or right mode