Use this as FAQ
You can mine tungsten using a yeast bomb. You shift left click while holding the bomb to set its source coords, then you place it where you want it to blow up, and then you place an item at its source coords to activate it. You can also activate the yeast bomb using a tectonic press, which is useful for automation.
Sounds like me at the beginning.
Take 3 Scrap Metal and right-click on the red/orange box to the right of your inventory. That will make a Heavy gear, it is used in some beginning machines.
That's the crafting box. To make Furnaces and the like do the same, just with recipes from the book you can open with the TAB key.
Most food items and some building block items can only be made in certain buildings later, I would not bother with trying to make advanced food until you use a Yeast Bomb to get Tungsten and the buildings it unlocks.
(For Yeast Bomb: Make a Logic Switch, place it down, grab the Yeast Bomb, Control-left click the Logic Switch, place Yeast Bomb as close as you can to Tungsten. Flip Switch.) (I couldn't get the 'place item' method to work)
Lastly, to get Milk you just need to feed a cowgirl enough for a bar to appear under her and then shift-left click her for milk, I recommend Sweet Potato fries for early milk production.
It seems like the pipe on the cryo generator isn't pointing into anything. The cryo generator cools down the structure it is connected to, and it is connected when its pipe (the yellow thing sticking out to the left of the cryo generator in your screenshot) is touching the structure. You should move the cryo generator so that its pipe is right up against the freezer chamber, other than that the setup looks good.
Yeah I would do what kurrosity said. You should have the cooling fan adjacent to the building. You have to ctrl+click (i'm not sure if this is correct, it's been a few months since i've played) the inspector panel for it to work properly (foods have a certain temperature range where they can be created in, if it's too low or too high the food isn't made).
If you still need help just lmk and I'll redownload the game and send you more instructions. Like I said, it's been a hot minute since I've played Gain Factory so sorry if my instructions were ass