how did you get there is my question cuz tried getting that angle a few times and kept falling through the map.

Yeah i found the spot.. So close yet so far away lol

if i was i need to chill with bl2

was i correct?

Yup, it's on the side of Thousand Cuts.

I was on the scaffold walkway down towards the cavern (that summons Terry) but I got blown off by an errant barrel which knocked me northwards onto a lower ledge, unable to jump back up.

I thought there was some way of getting up, but I ended up slipping off and losing some coin before I had a change to save and reload.

Good work on recognising it! Next one will be tougher....

the tip of the edge of the teras peak entrance below the stairs at the bottom before inserting the eridium

Tera's Peak.