Find a local B group that does a shorter ride than 2 hours if you still want to cut your teeth a little bit but not so much as to not be able to ride later in the week.
Often places on weeknights cut it to like 1:15 or 90min or maybe even only an hour.
Also, zero shame in doing just 1hr of that B group and dropping to the C's or solo home at zone 2 pace. We have racers who race cat 3 on our team that sometimes drop from the A+ ride to the A or even B just to have an easier mid-week ride and keep training up, instead of wasting form on a hammerfest.