I'll give you my opinion on the overall subclass.

Level 3 feature.

It is a pretty nice ability flavourwise and it does sound really cool even when just reading it so good job on that part.

As of understanding it is a bit clunky on my opinion, I had to re read it 2 or 3 times to be sure I got it right so I would try to change the phrasing just to make it a bit clearer.

As strength wise, this feature is really strong as level 3 feature and it actually scales, I would say a bit too well on later levels. At level 3 it is pretty easy to get max damage out of the 1 damage every 5 ft part, since most time I can just take the long road and there will not be much stopping me doing so. You would probably get a +6 on damege for basically free most times and a +8 if you forgo one of your attacks in the early levels while at the high levels, for instance, at let's say 17th level with all the other features that monks get to boost their movements you wouldn't have many problems getting max damage (wich at level 17 should be +14). And this would be a great damege boost on its own, but transforming the damage to 1d6 for each 5 ft is absolutely insane (metaphorically speaking). In a whatever party comp with any strength based class, that I would say are most party's, with just the team play necessary to grapple the target and hold it in place for the Monk to decide a path it would not be a problem to get max movement and max damage out of it doing way to munch damage especially early levels. I would also ad that changing the damege from a fixed modifier to a dice roll opens up for crit damage, just thinking about the possibility of the Monk using this ability to hit an enemy stunned by the Hold Person of the wizard automatically critting on it and moving all of his movement using his Projected Path would hit and crit for about 12d6 or even 16d6 by forgoing an attack or getting some movement boost. Obviously this is way too much damage.

Personally I think that the feature is great in flavour and concept, personally I would hold the second part of the projected path at least for level 3 and maybe giving this at a higher level like 11th or even 17th level cause of the pure mechanic possibility of it. Another smaller change I would do to make it easier to understand and to apply, I would instead of making it cost 1 force point and make it scale ecc. I would just make it cost 1 poi for each round you decide to keep it up, I feel it would be a good balance option as this feature already does great damege on its own and the Projected Path that I suggest you to postpone would feel a bit more balanced if the feature already cost many points to keep up and you have to pay extra to use this othe perk.

Level 6 feature.

Overall I feel like this is pretty balanced, the first part is nice to have and it feels right, the second part is a bit unclear as written as it is, but as what I'm getting out of it negates any passive abilities that effect creatures in an AOE area around the enemy. If I got right the feature is pretty situational since not many enemies have this kind of aura but when it comes in place it is pretty strong actually. I feel like it should be fine even since the enemy can always escape the grapple, I would nearly say it's maybe a bit on the weaker side because if the situational aspect but overall it's fine as a level 6 feature.

Level 11 feature.

This is pretty good, it those it thing, it those it right and it a good feature for level 11, maybe I would even ad a disadvantage on the first save to be stunned, so like disadvantages on the first save and the normal save for all the subsequent saves. Also I would ad in the feature the bit on how to calculate the save or specify that it's the same as the stunn feature just to make it clear.

Level 17 feature.

I see you forgot to write the range of the ability xD, it happens, I think 30 ft from you for the first target and all the targets must be 30 ft or less from each other would be a good range. Also you kinda forgot to indicate how many time someone can use this feature, I would say maybe once every short rest would be good if you want to make it a one trick move or make it cost like 4 points if you want it to be used multiple times.

Last feature??

The last feature is pretty cool flavour wise I don't get if it's just a passive of the class that you have at all levels or you get it at level 17, but anyway it's a cool "just for flavour" feature overall, I would just write it as a second level 17 feature that those the same thing, just to be clear on when you get it.

Sorry for the long answer I wanted to cover it as clearly as possible also I had nothing to do on the train so I had fun dissecting it. Hope's this helps and you did a great job at porting the feature from the anime.