Just sped through the early game for my wife (She was late Summer yr1 and wanted a different pet). Main goal was to have her set up with sprinklers by summer 1, so a lot of focus on the ocean for kelp (just bronze and silver), followed by blasting through the mines. (explosives in the fire mine are a godsend when you're still swinging a bronze pickaxe. regular rocks are still just 2 hits, but ore is 9)
For energy, I dehydrated any ocean forages I came across. That worked well until the tree festival. 1500 for the 300 seeds and turned them into candy. 6000 total energy for 1500 gold is awesome.
I see a lot of people suggesting bug jerky, but I've never gotten around to upgrading to a kitchen until my summer crops start coming in.
Anyone else have any favorites for early game energy?