Q: you often suggest writing lyrics and melody at the same time, but i seem to find myself incapable of doing so. any suggestions?
A: take your favorite chordal instrument that you play (maybe guitar, piano, something like that) and just spend a lot of time with it, improvising, singing things with it, and don't forget to allow yourself to be really really really really bad. and spend a lot of time just trying to relax and have fun and explore possibilities. if you do this for a few years then i think you will be able to put things together pretty well