An amateur tries to bake usually ends it with failure result instead of succeed. I do too. There are several kinds of possibilities, such as:
1. You don’t read or pay more attention on the critical point. Read the instruction one more carefully. Maybe you’ve left something.
2. You have no idea about the expired date of your raw materials. Check them again on the package. Perhaps, you shouldn’t use them any longer. If yes, just throw in your garbage can.
3. Maybe you don’t keep the raw material in appropriate needed condition. If you store them in the wrong place with wrong condition such as high humidity, room temperature, direct sunlight or something, they will be broken faster than they used to. So, check again on their packages what condition they really need, maybe they must keep in the refrigerator after you open it, or just keep them in dry place, without any sunlight, etc.
4. You don’t use right equipment. In some cases (but not always), the right equipment takes the roll.