no such thing as too excited.
A home gardener making her own cross is a labor of love and an exercise in patience as well I would know
I think your little round fruits show your cross took. I know a bit about hearts and they are always "hearty" right from the get-go
I think your F1 will be a small but likely larger than cherry sized round red. time will tell. Enjoy your project , the real fun starts at F2.
KO