New difficulty

I would like there to be a difficulty added between peacefull and easy. I am still learning how to fight in minecraft but I struggle to learn because of how many mobs there are at the same time. Maybe you could make a difficulty where mobs can't bring you lower than 5 hearts so when I am learning how to fight I don't have to deal with constantly dying and needing to return just to immediately die again because of how many mobs there are and how bad my combat skill is so far. I want to learn it very badly but it demotivates to constantly keep dying because you don't get the time to practise because of how fast you die. I think this will give players like me who want to learn combat but aren't good at it to practise there combat without losing motivation to learn it. I don't want to live in peacefull because I want the trill of fighting and I really want to improve my combat skill but I barely get a chance to learn because of how many mobs attack me at the same time and immediately kill me especially if I died before that