If you are riding zwift, its reasonable to assume you are actively riding other bikes and just hung the Cervelo up in order to use a different bike(s) more frequently. Given that, either adjust the Cervelo to make it fit you now or just sell it. You rode it twice in 2019 for 350 combined miles so just 2 years ago it fit you well enough to ride longer than most anyone else ever does. Seems like the fit could be adjusted unless there was a major life event in those 2 years that is keeping you from getting it to fit.
Or just sell it and keep riding whatever you enjoy riding right now. Its a bike, not an investment to hold onto as it appreciates.