Cycling Fitness / Training Advice

This time of year there's no point trying to build race specific fitness with anything high intensity as it will be short term form especially if it's not been built on a base and there's no races happening at the moment that require that kind of fitness so this time of year is better spent building cardio endurance and strength so just building weekly Z2 mileage and a bit of strength work. This will minimise losses if you were fit at the end of last year and make you fit and strong (not super fast) ready to cope with the intensity that follows. Feb and March off the bike is enough time for your body to totally de train unfortunately. However i do believe a double dip for specific race fitness if possible when the seasons are apart and you don't try to peak for the first race of each season so you could try?
January = just ride your bike consistently and log your weekly mileage
February = from your average weekly mileage start building on that weekly by 10-20% a week plus some strength endurance sessions like the ones previously mentioned
March = start moving through the gears so start adding/replacing Z2 rides a couple of tempo sessions a week roughly maintaining weekly mileage not building it but over the month progress the amount of time spent in the tempo zone say from 10% to 20% total ride time over the month
April = swap the tempo with threshold work twice a week same again progressively building your time spent in it from 10-20% a week
May = turn up at tts in decent shape not really fit just yet start racing which will be high Z4 plus one other threshold session a week either building time in Z4 during that weekly session or keep the duration the same and start introducing over/unders (i personally prefer on/overs) you should be getting fitter and faster every week or two now 🤞
June = if your enjoying the fitness and feel good not too tired and have more to give add a session of Z5 work like 6x3 mins @120% ftp (or similar) and bring the over/unders back down to Z4 efforts again. Go fast.
July = just enjoy riding your bike hopefully in the sunshine stop building just add something spicy once a week to liven things up if it feels too slow and boring.
August = as March
September = cross is here don't worry if you're not as fit as you were in June you've got 3 months of racing ahead but start hitting the high intensity Z5 stuff 2x a week on racing weeks on non racing weekends work on some specifics that have been letting you down in racing either technically or specific effort wise there will be some. Improve go fast.
October = same as September but you should be getting quicker every other week. Boss it.
November = drop one of the Z5 interval sessions per week carry on racing until tired and performance starts to drop off.
December = chill the fuck out its Christmas.
And repeat.
So there you go in a nutshell 😂