Amish Starter Dilemma

UPDATE my starter got moldy and I had to throw it out ROTFL
Ok SOOO hubby went through the freezer and threw out all my old Amish starters (yes I knew what he was doing and although it made me sad, I knew it had to be done lol), there were 5 in the freezer and 2 on the counter lol, We are trying to take back control of it lol,, SO I am trying to figure out how to have enough starter to ONLY make one batch of bread and save the rest to keep my starter going SOOOO here is what I did, I used 1/3 C sugar, 1/3 C flour and 1/3 C milk and started it in my bag today, we will see if it ends up being what I am hoping.. Wish me luck :D I dont want to be drowning in starter anymore hehe. For now this is the only starter I have *whew* hubby can get off my back now