I need some training plan advice.
I'm new to riding and have been working on getting faster and stronger by simply riding as much as possible.
Since starting, I feel that I've gotten considerably better where I can go on mid-low distance (40miles give or take a few) group rides with local bike clubs without getting dropped and able to lead sprints and hang with faster group on training group rides that range 25~40 miles.

My goal is to be able to go on drop club rides and feel very comfortable (right now, I can hang but almost dead after the ride) and to be able to ride the next day again. I want to come up with a decent training plan with whatever the limited time that I have aside from work.

This is my current ride schedule that I do on weekly basis.
Monday - Training group ride, 35~40 miles. First 13 miles @ 19~22 mph. Rest at 20+ with sprints mixed in.
Tuesday - Rest
Wednesday - Casual group ride, 20 miles @ 18~20 mph. Very short sprint segments here and there. Then about 10 miles of 1 min all out intervals solo.
Thursday - Solo ride, 30 miles @ 18+ mph. Very windy trail. Very short sprint segments.
Friday - Rest
Saturday - Spirited Group ride, 40~50 miles. First 15 miles @ 19~22 mph. 25 miles @ 23+ mph, Rest at 18+
Sunday - Rest

With the goal that I have, what can I do or change my routine to better my ability to ride?