Insulation making me crazy
TL;DR 1901 house, 2nd flood gutted, foam sealed all gaps, would it be OK to not insulate and then fill cavitites with cellulose?
House: 1901, platform framed. Sheathing is 2 inch think lumber, with wood siding ontop of the sheathing and cement siding ontop of the wood siding. No housewrap etc. 4.5 inch (+/- half inch) deep stud cavities.
Goal: I am not trying to create the most energy efficient house in the world...I just dont want mold.
Situation: 2nd floor gutted for rewire job and now suprisse renovation.
What ive done: I have sealed the gaps with expanding foam to make things more air tight. I was going to put R19 in and vapor barrier but reading online has me convinced that fiberglass insulation will mold and rot my framing - especially becuase the r19 would be compressed.... I dont want to spend close to double on rockwool.
Proposed plan: hang sheet rock, and then blow in cellulose insulation. Would this reduce mold risk?