Here is the non-Seasonal version of the maxroll guide:
https://maxroll.gg/d3/guides/patterns-of-justice-tempest-rush-monk-guide/2
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If you get knocked down before Stone Gauntlets can trigger, that means you need a second layer of defensive bonuses that is consistent and don’t lose it because you performed some action in combat. This can be a legendary item or a secondary side Set that boosts both your survival and damage. If we’re talking about PoJ here, that pick is either tossing Mantle of Channeling or Lefebvre’s Soliloquy in the cube.
Start by replacing your Inner Sanctuary with Serenity and replace your Puzzle Ring with an Obsidian Ring of the Zodiac. When you have consistent damage mitigation bonus from MoC or Lefeb, you won’t need Inner Sanctuary. Also, Squirt’s on your non-Season Monk, makes you vulnerable at its peak and when you have issues with survival then consider removing it until you have acquired MoC or Lefebvre’s in the Cube.
You have Aquila Cuirass on a Monk build that is a heavy spender; this could be the inconsistency on your survival if you fail to meet some thresholds for resource replenish. Even casting something so mundane as manually refreshing Sweeping Wind or activating Mantra, which I see you have equipped, can send you below ~90% resource threshold and remove defensive buff of Aquila in an instant.
I say, replace Squirt’s in the Cube with Ring of Royal Grandeur, and replace Aquila in the cube with Lefebvre’s or Mantle of Channeling. You can wear either of those shoulder pieces as well. Additionally if you have it, craft two of Captain Crimson’s level 70 Set pieces from the Blacksmith; a belt and boots. Be sure it is level 70 before crafting it; it supposed to grant you damage and protection per Cooldown and Resource Cost reduction. That side Set is very powerful for starters and grant you a significant boost for survival and damage output.
As for skills, while TR- Northern Breeze is great it is kind of lacking compared to Flurry skillrune. For T16, it can stay but if you need to hit for higher difficulties such that is Greater Rifts 100+ you’ll need Flurry. For dealing higher damage replace Echoing Fury in the cube immediately with Balance, legendary Daibo. The attack speed bonus of Echoing Fury can even be detrimental for your resources at times when casting Tempest Rush.
Lastly, I see you have a primary attack which could be a great choice, but I don’t see you have fitting bracers or jewelry. The moment you spent replenishing your resources could be spend at dealing damage in consistent bursts. Since you lack crowd control to topple aggro, that damage boost you get from WotHF- Assimilation buff will not be very high either. It can be made viable in T15-T16 with Focus and Restraint ring pair and perhaps Mythic Rhythm passive, but it will be somewhat inefficient for farming as it requires greater commit.
You have Cesar’s Memento equipped but I don’t see any source of blind, freeze or stun at your equipment or your skills. Consider replacing your Way of the Hundred Fists with any Blinding Flash skillrune, Faith in the Light preferred, or Cyclone Strike- Wall of Wind so you can apply required crowd control.