If I were you, I’d just start a new non-exclusive account and put new songs in it. Don’t delete your old songs. I’ve had songs sit for over half a year then suddenly sell. I tried the thing before of taking non-selling songs out and trying to sell them elsewhere… and they didn’t sell anywhere else either. AudioJungle has quite a big volume of traffic going through it so take it at face value if a song doesn’t sell here. Try putting those songs in packs, customers may not want to buy that song individually as there are other songs in that theme or style they like more, but if it’s in a pack with other great songs of yours it is of added value for them to buy it!