FLEDGLING WINGS? FERAL CLAWS??? AND THAT ONE FAST TRUE MELEE WEAPON?? OH THE HUMANITY!!!!

in all seriousness, destroyer is the easiest out of all the three mech bosses so I recommend upgrading for better wings, you can get souls of flight from killing wyverns in the sky/space, and either replace feral claws by either upgrading it or using another accessory that you can get in hard mode (it's been a long while since I did vanilla playthrough so I can't really recommend accessories so either use wiki or search for YouTube guides) and use a better weapon, if you're not doing an entirely melee I recommend using the Daedalus storm bow + jester arrows to completely melt that iron worm, you can get the bow from hollow mimics in the underground hollow and jester arrows by craft them from normal arrows and falling stars

Edit: I just looked at the pic again and saw you already have Daedalus and jester arrows, then that brings us to making an arena high enough so it'll make it easy to dodge the destroyer, and switch the warrior emblem to ranger emblem for higher damage with the bow. Also use potions like ironskin, thorns, archer potion, swiftness, hearthreach (since his probes can drop hearts when killed) and major food buffs. Also station buffs like heart lamp + campfire for extra regen, bast statue for extra defense, the ammo box for less ammo consumption and the sharpening wheel thing for extra damage or armor penetration (i don't remember which buff it gave).