Mining ship stuck on nothing, thrusters have little to no effect

Hey guys,

So I made a mining ship that I thought was pretty clever, and it's backfired for reasons I can't understand. As you might be able to see in the video, it's a small ship with 4 downward facing drills. I tried to mine by descending straight down, and all was well for the first few feet, but after that the ship acted as if it was being pulled downward by a strong force. I immediately turned off the drills, but somehow the ship now acts as if it's jammed into corridor or something. (see video for better context.)

I tried digging it out with my hand drill, but every time I'd dig out a section around it, the ship would simply fall over like it was an inert mass, so no matter how much space i dug around it, it always settled into the bottom part of the hole. Trying to use the thrusters to move in any direction is almost useless as it continues to act as if it's wedged tight despite there being nothing but open space in the direction I'm trying to move. I thought it might be something to do with the landing gear, so I disabled both blocks from the control panel, but it didn't change anything.

It's really frustrating since I spent most of the night gathering the materials and designing the ship, and I'm pretty sure the only way to free it is to scrap the whole thing and try again.

Video of Problem (When in cockpit, I'm trying every direction including ascend/descend): https://imgur.com/a/zOWk8N4

Here's a picture of the same situation 5 mins after the video, I cleared out more around it and removed the solar panels. Still was not able to move: https://imgur.com/a/GPyY6hd