You do and will get better over time. When I started cycling I wanted my first 25mile ride. I did it... but it was rough especially from 15-25miles. Stopping every 3-5 miles. Now I can ride 10 miles no breaks pretty easy and after still feel good to keep going. My avg speed is at 13-14mph so I need to bring that up. I would like to do a century but I’m planning that for spring. Next month I’m doing an event ride for 35miles. Oct I want to try 50miles.
Im staying at it so should you! Oh and I’ve lost 25 pounds :-)
when i did my 25 miles I didn’t eat it was 90+ humid Oklahoma mid day. I over did it and was over heated and started get sick. So I’ve been there! Working out wouldn’t be the same without the work