Don't give up!
That happened with me and my first town. But eventually the memories will fade, and even if you cycle through ten different towns, I know that ONE will stick on your heart.
There is nothing you can do about it now. I think the sooner you get started with a new town, the less sad you will feel (hopefully!). I hope you can find a suitable map soon.
Just keep trying until you get the perfect new town for you! I'm making sure I will do that when I reset my town in a few days... I'll miss you Viridian... and all my dreamies... ...I'm sure we will meet again...