If you want to go at my speed. Its a lot of hard serious training.

You will have to ride minimum of 250 miles a week. Not at leisurely pace but at >70% max HR.

Do lots if intervals. Do sets of hill climbs. Spin exercises. weights (not heavy but go for repetition.)

You don't have a life when you train more than 20 hours a week. BF?? WHO?? WHAT??

I used to joke with my brother in law about how often we would have to replace chains and throw away the worn out clusters. I went through atleast one set of chain and a set of cluster per season. My brother in law was even better, he went through a complete road bike per season. Got to be pretty expensive even when he got the parts at cost.