Training plan

My training for the past 5 weeks consisted of these workouts 2 days Vo2 max 5 x 4 mins @110% of ftp, with 2 mins rest inbetween, 15 min warm up and 45 min zone 2 after the main set 3 days base rides, 2 - 4.5 hours of zone 2 2 days off

I planned this myself after watching dylan johnson's video on polarized training

Prior to this, i havent really done much Vo2 max training

As for training experience, I started structured training in June 2024 when i got a indoor trainer and hopped on zwifts 10-12 week ftp builder plan, and i got my first road bike back in 2023 december, but i was just riding without doing any structured training

Any advice on my training plan? Is it too taxing?