Dps, only heavies can tank
Thanks for the clarification 
You are a player wearing what you want to wear or have found, and I hope you know what your equiped buttons do. End of what any story should be in an MMO adventure.
Melee DPS. A tank would have a tower shield and heavy armour, with gems/perks designed to get hit and absorb damage. So it’s a specific group role.
What you said is true, I wear what I want and do what I want, that’s why I paid the money 
In fact I play alone and I am not good at English, there may be instructions in the game especially for new players that I did not pay attention to, so in my spare time I watch some YouTube clips and some articles, a large amount of information, and I came to the conclusion that if I increase the strength, I can Complete missions without anyone’s help. If I level up, I go and buy a stronger weapon. After the latest update, I no longer benefit from the power of weapons.
Do you have anything to suggest to me? Leave the game for example? 
If I were you, I would go for full heavy armor. Faction gear would be good to start with. You can also get the weapons from the faction shop.
Just a hypothesis but the game wasn’t built for what is traditionally experienced in other mmo’s.
Typically this has been called “tank’n’spank”. The tank grabs and holds aggro with few if any interruptions while the dps beat it to death with magic and melee.
From experiences in Expeditions this can be approximated. It cannot be totally replicated on a continuous basis.
The hypothesis is that this is intended. The designers did not want a simplified approach to Expeditions. Obviously with gear and supplements to that gear they wanted to enable at lest some ability for traditional tanking.
It just doesn’t seem as if designers wanted the traditional ‘taunt and hold’ approach to be the sole means of getting through an Expedition.
Thank you for your elegant response. In this case, I will replace my weapons with lower-level weapons. Is this considered a problem? But since I will not lose anything and experience is good in most cases, I will take your advice.
What you mentioned is very logical, do you think it is better to allocate clothes and weapons only for the Dungeon?
In this case, I need some advice 
You aren’t a tank without a Carnelian gem on at least one weapon.
A dashing hero of Aeternum?

Agreed.
With the classless system of NW, we really need NW specific ways to talk about these things instead of falling back to the WoW class model.
Somebody that wears heavy armor and uses a bunch of carnelian gems could be a “Heavy Threat”.
Hmmmmm… the TF2 classes would work just as well… Heavy, Medic, Pyro, Soldier, etc…
What? New World is an MMO, the holy trinity, tank, dps and healer.
They are not WoW classes, many, many MMOs were around and using those WAY before WoW…
You’re a DPS player.
I like that one and think more like it might be good to just start using.
The primary experience for the majority of players is going to be WoW. Aside from that it has been the single most popular mmo outreaching anything before and even after it.
That might change in the years to come, but this is the common experience of people who play mmo’s.
If you don’t generate threat then you can’t be a tank. I’ve seen DPS “tanks” before but if you can’t hold the mobs then you shouldn’t classify yourself as a tank since most groups want a tank that can hold aggro.
I think even though we have a classless system we still fall under the trinity system. I don’t think a build that uses taunts can actually put up the same numbers as a DPSer. We still seem need the Tank role to hold threat and survive and I don’t see another build being able to do that without heavy/shield.
Im not disagreeing at all.
It would just be nice to have some NW nomenclature to use that reflects that classless system. That’s all.
That would he cool to break the mold.
Buffer: Heals and Buffs
Bruiser: Heavy armor damage
Aggressor: Generates threat
Hunter: Ranged DPS
Mage: Magic damage
Assassin: Melee DPS
Supporter: Buffs, minor heals, debuffs
Off the top of my head.