To be honest, If you DO cycle with live fish, and if the damsels die from burned gills (that's what ammonia does to fish, BTW), this is the ONE TIME you can leave the carcasses in the tank, as they will still provide the necessary nitrogenous waste to get your cycle started.
If you're dead set on cycling with live fish, you might consider using mollies instead...at least they won't be unholy terrors. after the fact.
Nobody is dissing you...however, there's a lot of experience on the forums, and there's both good and bad advice. Your job is to weed out this info. The best thing I can suggest at this stage, where you're learning the ropes, is to find one or two like-minded mentors and follow their advice. If you start picking part of this and part of that, you'll end up confused, or worse, as sometimes different methods can't be combined, or you may not have the experience to know what you CAN take pieces of.
Some of us have been doing this a LONG time, and you have to understand that nobody gets paid to help noobies (or anyone for that matter), and it CAN get frustrating when one feels like their experience is being ignored, so that sword cuts both ways: You may feel like you're being treated as a noob, but the folks trying to help feel like some peeps only want validation of a poor idea rather than real help...