I die a lot/halp

Hello guys, so im playing Tectonic Slam - Juggernaut Marauder and i dont feel tanky at all I die a lot and feels like i do not leech at all I killed t16 pheonix but hydra just one taps me
this is build vid: watch?v=kiQHFtSLPH4&t=4s
and this is my pob: https://pastebin.com/i3JLXxcf
if somebody could suggest what i should upgrade/change would be nice thanks for attention.
And which map mods i should dodge?