My main focus going forward is going to be stopping my pelvis from moving towards the ball on the downswing, causing me to stand up into the shot and get very steep
Here's some drills I'll be trying
Stay In Your Posture by Jim Williams: https://youtu.be/Y55kdjJIDgw
Stop moving into the ball: https://youtu.be/AlTbAT7vhY4
Don't stand and move into the golf ball: https://youtu.be/-DlZo7pt9KI
Stay in your posture through impact: https://youtu.be/qCiYm6eoYCQ
i hope this is something you've been working on, and not something you're just now working on because of something my untrained eye saw. i haven't read through the whole thread, but if freddie has you working on anything in particular, i'd say to stick to his plan until he says otherwise.
i'd expect to see a lot of toe hits when you first start working on this. you're so used to standing up, you likely won't maintain your spinal inclination enough. i know that's my big struggle when i do this, and mine is exacerbated by being in poor shape with poor core strength and a general lack of mobility. but when it works, the results are awesome. you find yourself posing, and kinda hoping someone around you just saw the shot you hit