Hang in there Tobelyn, it does level out after a while. I'm currently level 63 with a 685 barn and I had the same problems as you previously. It's only within the last week or so that I seem to have got the barn under control. This is what I currently do:
- Make one of each item - I only fulfill orders that ask for one of an item and delete the ones that ask for multiples.
- Never keep feed in the barn - I leave the feed in the feed mills and just grab it when I need it.
- I do buy non-crop items from the market, but these very quickly go towards planes/trains/friends.
- Stop doing the zoo - I was putting all my resources towards it but then realized I would do better getting my town to 82+ and THEN doing the zoo. Now I don't have ridiculous amounts of shears hanging around!
- Have at least 4 plots of each crop and a bare section to use for on demand items. Any crops I am short of, I buy from the market.
- Get as many baskets at the market as possible, either through friends or T-Cash. Someone on here said it works out like an extra barn, and they are not wrong!