Tutorials/Ultra hardcore survival

Are you ready for an even harder challenge than Hardcore mode? Well then, meet Ultra Hardcore! In Ultra Hardcore mode, the only difference to the regular Hardcore is that you don't naturally regenerate health! This difficulty is extreme and is only recommended for experienced players.

Note: This is not a pre-made gamemode. To make it, set to Hardcore mode, and if you're an op, or open to LAN with enabled cheats if in singleplayer mode, then type /gamerule naturalRegen false, then you're all set.

Notes and Tips

 * First of all, as stated before, there is no natural health regeneration. PLEASE try to avoid even the most pathetic ways of getting damaged, like cacti, or its all over.
 * You'll have to be really quick with getting resources because danger is doubled always with no regen.
 * All kinds of ways to regen other than natural regen are your new best friends. As soon as possible, make a Golden Apple or a Potion of Regeneration/Healing (Preferably Tier II's)- If you can't seem to obtain ghast tears or glistering melons don't forget that you can always use a spider eyes to make a potion of poison and then use a fermented spider eye to make it a potion of regeneration

WORK IN PROGRESS
Please feel free to contribute!