No idea where to go without expensive gear to stop being one shotted

you can see my current occultist build in my profile
I simply dont know where to go, brass dome armour maybe? or convert one of jewel slots to cluster and go with passives there.
Tried many things, still capped around 10k-11k physical max hit in POB.
Any suggestions?

There are a lot of things which doesn't fit in the build.

Your passive tree needs a rework. There are so many unnecessary points used. Try testing some alternatives.

Switch your rings for some real ones which give more res / damage /attributes or anything at all. The glove slot is also wasted. Maybe go for alva mod / high es / cast speed or something like that.

Switch out flasks. 4 of them aren't doing anything.

Try to fit in immortal call / molten shell.