I have recently gotten a Tacx Neo Trainer and signed up to Zwift. My first FTP test gave me an FTP of 200w (2.8W/KG).

I have never actually "Trained" before, but I have been commuting by bicycle for the last 3 years (15km twice a day), as well as some cross fit style training a few times a week.

I have set myself a goal of 250w (3.5W/KG) in 12 months, then 300w (4.2W/KG) in another 12 months. Is this realistic? or just a dream?

Also how many hours a week of training a week will I need a week to achieve this?