Originally posted by Grailoch:

Yes, imacheater mode would give you those thing you desire.

Well, not really. I dont think he wants to just be invincible. That seems really boring. Just less death-punishment.
Theres another mod that "fortifies" your skills. It grows slower but provides a baseline that your skills cannot drop below that point. Good for little used skills not fading to nothing.
It wont make a difference on your main skills, but does allow you to buff other skills without losing them entirely.

I use both of these mods with Epic Valheim since it cranks the difficulty significantly such that dying is gonna happen more often than a vanilla run, so this compensates.