With some understanding of 'where' you're coming from - your 'position' (how your body is distributed on the bike) is greatly determined by your morphology. Carrying weight in the torso is a large consideration when it comes to forward lean on any bike, especially a road-ish kind. Some of that is a consideration for 'fitness'/strength in the core, shoulders, back and arms.
Then there's flexibility...
You've lost a good amount of weight. Augment that with strength work for all the areas mentioned, At the same time work on 'Flexibility'. Flexibility is key to comfortable cycling, key to comfortable Everything!
As you continue to approach a 'balanced' self, you'll also find your bike position changing. There is a 'Balance' to aero and upright for everyone, and Endurance...
Riding a bike is a journey of discovering and knowing yourself... A journey of Truth and Acceptance; and through those, of Appreciation.
Riding the bike is both physical and metaphysical (as is everything we are and do).

Too much jarring 'weight' on the hands, try to mitigate (bending elbows). Shorter and higher angle stem before screwing with the seat. Seat should be set for the most optimized position for leg power and pedaling flexibility - then its bar position.... An adjustable stem helps with bar height and has some effect on 'reach', even a cm up or down or back and forward makes a discernible difference... Adjustable stems are cheap... and will help later, as you search to be more forward and aero...
Ride On
Yuri