don’t take this advice.
There is no reason in the world why a beginner needs to invest in specialized olympic shoes for the sole (pun) purpose of squatting. Oly shoes are OVERRATED by the masses. And don’t get me wrong, I use mine all the time. But I went for YEARS without them, and only got them because I started competing at an elite level. You don’t need oly shoes to learn to squat 200 lbs, lol.
What you do need is to learn to brace your core for stability. That’s the biggest problem I see here. Before you begin your descent, you need to take a huge belly breath, flex/tighten your whole body. Create tension throughout your upper back, abs, torso. Then squat. Hold your breath through the duration of the rep.
I would also recommend taking less time just standing there with the bar on your back and fidgeting around. You spent a full 10 seconds just standing there before you initiated the squat once your feet were in position, accomplishing nothing. Also don’t take all those baby steps out to get your stance ‘just right’. Take 3 solid steps, brace, and squat. practice the unrack and steps to get used to this, it can be mentally challenging at first but it will be a huge energy saver as the weights get heavier and harder to hold.