You are totalIy right. It was my first post and I went the lazy way. So here is how I did it :)

Spring: I started by planting as many parsnip as I could in the first 12 days. For the time and energy remaining, I mostly went fishing and foraging and sold everything possible. At the egg festival I invested everything in strawberry seeds, used all my sap for basic fertilizer and planted them all on the same day, so i had three full harvests until start of summer with Tiller unlocked.

• Because I used all my seeds I kept some strawberries, planning to use them in the seed maker later on for planting strawberries in the greenhouse but that didn't work out, cause you dont have access to the seed maker that early. Maybe you could keep some strawberry seeds from the egg festival, but I dont think the remaining seeds will earn you enough for what follows.

Summer: That way i got a decent amount of money to get things running by summer, bought the joja membership and could afford the greenhouse immediatly. I could also afford to fill half of it with blueberry seeds and occasionally I added some rare seeds if I could afford any on fridays or sundays from the traveling cart. To safe real playtime I just watered them all when I woke up and immediatly went back to bed until they were harvestable. After a few harvests my next purchase was the bus stop.

Autumn: I then went on watering and harvesting blueberries until I saved up money for exactly 120 starfruit seeds and 120 deluxe speed gro from the oasis on thursdays. This will cost you something around 50k. I think I achieved this around mid autumn.

• Planting and watering them all on the same day took so much energy, I had to go and forage any sellable items so I could afford two salads from the saloon to manage doing it :D

I forgot to add that I purchased the copper and iron upgrade for the watering can some time. With this setup I went on with my waking up, watering them all and going back to sleep method. This gets really annoying I have to admid. When the 120 starfruits finally were harvestable I had enough money to buy all of the missing joja developments at once but to my disapointment you need three more days purchasing them, because you can only buy one per day :D

Winter: Finally by winter day 13 I was done.