Transferring phones?

SO heres the deal, I have this iPhone SE. Its fine for what it is, but it has only 16 gb of storage. That would also be fine, but 10 gb of my storage is taken up by "other" (not photos, music, vids, whatever) and I cant delete it. I want to just buy a 64 gb iPhone SE on eBay (same kind) for like 100 bucks... show more SO heres the deal, I have this iPhone SE. Its fine for what it is, but it has only 16 gb of storage. That would also be fine, but 10 gb of my storage is taken up by "other" (not photos, music, vids, whatever) and I cant delete it. I want to just buy a 64 gb iPhone SE on eBay (same kind) for like 100 bucks (unlocked) and transfer my phone service onto the new one. Is that possible to do at home without risk? Or do I need to go to the retarded Verizon store? If its possible to do at home (I've heard swapping SIM cards does the trick), what is transferred and what isn't? Thanks
0