you could try to setup a farming base somewhere safe nearby. there are portions of the mistland itself off the coast that can be habitable even if your undergeared or even make your own island.

caves under rocks work very well. gjall have poor senses but a good memory. if they cant detect you they eventually go away (provided there's nothing else they can agro to).

i had one fly into my base. blow up 1 wood wall it saw. then fly away cause nothing else agro'd it

but you could also not go there till your ready. instead of complaining you cant touch endgame content