You should consider changing the stress system, if you really dont want to remove it then at least make it interesting. Currently as it stands it really is out of place within the game of terraria but not only that it really seems random and tacked on. What i would suggest is keep the system in which you gain and lose stress but change it so that it only changes stats and doesnt give random debuffs which isn't fun imo. What it should do is that as stress goes up the character deals more damage, more than it currently stands, and then for each point of damage increased they take more damage, an example would be that for every 500 stress lets say the character deals 5% more damage, so at 10k it would be 100% damage, and as a result they would take 300% or so more damage, in addition to this there would be things like being unable to use health pots, unable to regen or more regen, and more move speed - There would be more than this but just a few ideas to show that having a glass cannon type build by having an insane amount of stress would be really cool. As the game continues there would be a lot more ways of increasing and decreasing stress, right now there isn't enough to quickly increase and decrease stress. Make it so dying doesnt change stress either, thats just a cheap mechanic to try and fix a broken system it also just makes the entire thing even more tedious when managing stress is just killing yourself over and over.
Maybe have it so stress goes up to 100k and keep everything else the same, this makes it the only real way to get super high stress would be those specific items that directly manipulates it, im thinking like a token item like light and dark, dark increasing stress by 100, 200, 400, 800, 1600 after each consecutive use and light doing the reverse. You can also make it slightly easier to lower stress if needed, have just one new system outside of these items to do so.
To add to what i was saying before here are just a few extra ideas - this would also include having stress go in the other direction as well. So you can be both stressed and calm, if calm its just the reverse of what i list below. Its just determining what is balanced and feels good, i think overall this can't go wrong if the numbers are tuned correctly. stress could go from negative 100k - positive 100k.
AS STRESS INCREASES:
Move speed - Increases
Jump height - Increases
Damage dealt - Increases
Damage taken - Increases 3x damage dealt
Health regen - Increases
Mana Regen - Increases
Crit Chance - Increases
Spawn rate - Increases
Knockback - Increases
Enemy Aggro - Increases
Total HP - Decreases
Total Mana - Decreases
Total armor - Decreases - ties into damage taken but they would be split to further punish players with higher armor.
Dodge Chance - Decreases
Buffs depending on stress threshold - there would be the following buffs at certain levels. these are coming from the terraria wiki
- With negative stress - Calm, Ironskin, Builder, Spelunker, LifeForce, Shine, Summoning, Weapon imbues,
- With positive stress - Rage, Battle, Dangersense, Hunter, Inferno, obsidian skin, Regeneration, Thorns, Titan,
- Could be either or - Heartreach, star pick up range
Some of these buffs do tie into the increase/decrease of stress but they would be threshold buffs in addition to the already increasing/decreasing stats so if you were to reach lets say 50k stress you would benefit even more. Either side wouldn't be better than the other, it would just cater to different play styles. There could also be certain buffs that only go one way, so for example it could be that higher stress = higher move speed but lower stress doesn't decrease move speed, something like that.