Are you still recoding with big track set ups or do you do simple guitar vocal versions? You might try to simplify and get away from the Band in a box type things that don't allow for any kind of layering. Might help you to build some dynamics into your own songs. I might suggest learning to play this one and see how you can take it live yourself. Not to play out but to bring some different techniques into your overall writing.
For this summer's 50/90 I did only "organic" songs, no BIAB (I fizzled out, though, this summer). But I still layered instruments and voices as much as I could. Dyanmics is tough -- easy to know about, hard to remember while you are doing it (ha, ha). I think one of my problems is that I am just not that excited about performing songs in just a guitar/vocal format. I did streetjelly on-line "open mics" and it was fun for awhile, but I am not talented enough to keep myself entertained (LOL!). Yea, it gets boring to just pick and play. I love all that "extra" stuff more!