One thing I am glad about eating in my old life was cloth, strings, and sewing equipment. That has kept me clothed on this jungle island. I can shoot string and cloth out of my fingertips which is harder than steel but softer and more flexible than silk. Comfy.
I covered myself with a nice dress with a skirt because lamia cannot wear pants, they just ride up and get dirty every time I slither somewhere. I decided that I would just call myself a lamia rather than think I am still human and deny reality. The changes that I have been through shaped my outlook and I can understand it is better to not delude myself like less intelligent reincarnated individuals.
On the island I can find giant creatures of every animal on earth and some from the magical world knowledge I have. I however am the size of a regular baby snake, does not matter how strong my body is from cycling fusion energy. If I want to eat, I need to rely on my venom which was also strengthened by the cycling.
My hunting plan uses a flute from the gate to put my target into a deep sleep, with the assistance from magic illusions to lull it into a calm state. I then slither on top of its neck and push my fangs into a vein before putting a single drop in its blood stream. This would usually wake it up, but with the deep sleep and my teeth being so small they won't feel a thing.
After I sense it stopped breathing and its brain activity has stopped, I use my synthesis ability to separate the venom and place body in the gate. Since the gate regenerates anything that is broken or removed, I now have an unlimited supply of other worldly giant creatures.
That does not mean I only hunt and make cloths. Oh no. I have an entire worlds information in my mind that went through magic and scientific revolutions. I used all that information and my own abilities to create artifacts of the highest grade. Throw that shit in my gate and I have world ending weapons that are at the level and beyond the sword of rupture that I can throw at people.
I had to clean the gate and organize everything in nice little stacks because my ocd just would not have that mess. My ocd has only gotten worse from having a computer for a mind. Weapons would be organized in weapon racks in separate rooms for function and effects. Raw materials would be put in an entirely different wing ready for synthesizing and crafting.
I learned all about spell crafting and created so many spells that I had to focus on increasing my memory banks to store them all. Gaining the abilities of a moon sized magic computer helped but I needed almost fifty times more what it could offer.
Improving upon me innates no longer needs my attention, I just let them run all the time and they increase like crazy.
My body grows slowly even with my fusion energy constantly cycling through it, so I must use magic by manipulating mana outside my body for heavy lifting.
All in all, my life on the island is going smoothly.