On the goblet squat : i suggested that one when you were saying that you couldn’t use free weights without a spotter because it’s an easy get out–if it all goes wrong you can just drop the weight. Also it works for me in that the natural balance point is to get back on my heels a bit more which is good traiining for the rear barbell squat.
On grip and position ; i have 2 different positions for this (really must post a pic or 2) with a lighter kettlebell (24 kg in gym,28 at home) i have the kb tucked uner my chin with the handle sitting on my chest and my elbows tucked in together, as i squat my elbows drop just between my knees and it make sme keep a knee-wide stance.
When i am goblet squatting ‘heavy’ (for me that is a 92lg db) the grip is different–i am basically cupping one end of the db up under my chin with the other4 end hanging against my chest (just touching) but for some reason i have my elbow wide nd they go over my knees during the squat.
Which squat were you trying ? front or rear ? . Front squat can feel really weird and you may need some basic teaching as it’s a very strange position at first. I found the rear squiat much easier to learn --if you are struggling with it have a try at the movement with a bromstick or pvc pipe and work on the movement before sticking any weight on.
Big part of my gym and home workout is movements with the bare oly bar,lots of movements just with the bare bar i think is pushing my technique forward (according to my trainer who watched me recently)