I don't know if you are in a situation like mine. I live in a valley, a well populated valley. A few nice rides, but none that are mainly nice open and lightly traveled roads. In the valley There is a price to pay, traffic lights and often traffic.
Once out of the valley there are some nicer rides, more open, orten through orchards. Wonderful
But that means over the hills out and over the hills back.
If yuor situation is like mine yuo are half way ther to having new horizons opened to you. And honestly I have to say yuo have done the harder half. Once you know you can do it doing a little longer hill or multiple hills is just a matter of time.
be careful Double Centruies may be in yuor future.