any tips on beating the dragon?

[dauneaus 0]

i might have overprepared as in having full enchanted netherite armour, netherite sword, a bunch of golden apples, an op bow and some other diamond tools. is it necessary to use potions? because i have heard from people that you can get flung into the void and https://19216811.cam/ https://1921681001.id/ i don't want my hard work to be wasted. any other things that is a must to bring?