Getting the First Titania Piece from Maya (Rusted Moss Sister Rivalry)

Honestly, that was *hard*, like genuinely. I believe I spent well over an hour on this boss. I'm quite glad actually, Maya was kinda trivial and anti-climactic with level 3 weapons.
My route for this involved going straight to ichor refinery and getting shotgun, then going to pipe, using the teleporter (which I honestly did not expect to be active, I just hoped I'd figure a way out), and then doing Maya 1. From there, I used the shotgun to boost myself up to get through smokestack back to factory, and now with the grenade I could do the Living Quarters Climbing challenge to skip straight to Maya.
I got a few of the health and MP ups which were basically on the way. Notably, I got the range up trinket (happened to have the money), the flower trinket, and the stopwatch trinket (could only use two of them though). You'll also note that I also have Rocket Launcher. Originally I spent over a half hour or so trying to do this boss without rockets (which for me meant basically just shotgun), but like. The 2nd phase just takes like 10 years if you're only using shotgun, and it just wasn't all that fun for me. I decided to take the hit and go and get Rocket Launcher which allowed me to play much more aggressively. Also, I don't know why mousewheel or smth doesn't let you switch weapons? I wish there was a button for quick swapping, because navigating the weapon-swap menu mid-fight is terrible and it's kinda awkward to press 3 and 4 to swap to different weapons (as opposed to, say, pressing Q to swap to your last used).
Oh, also I happened to get called while doing this fight, which meant multiple minute long pauses. I cut out the larger part of those pauses because why not.