@Ductapetams sounds like you have a plan for growing your animal numbers. Glad that you can realize some savings by working at the feed store. I did the same many years ago, got a discount on the feed etc. 3 months is a good time to wean off milk replacer, and glad you know that the all milk type is the best way to go; but we cannot buy it that cheap up here. I now raise any extra calves on a nurse cow or 2, and she gets grain so it is not "free" milk for them either.
Your first post gave me the impression you were new at this but you seem to have some time/experience at it. New people think it is easy to raise an animal and make money at it. If you add all the costs, it is not some "easy money" thing that all the farmers are making a killing with prices being up now. Sure, we make some money on the good years, but we also "pay for it" on the years of low prices.
Best of luck.