The one thing I can suggest is NOT to cut the exact sizes for your design from the fusi before you iron it to the fabric ...
Draw the shapes in the size you need including seam allowances on the fusi .... cut around these with 1/4" - 1/2" or so extra, Iron the fusi on to the fabric THEN cut the shapes out exactly
Im not explaining this very well as Ive been pole-axed by some evil lurgy overnight and have a head full of cotton wool.
If the problem is you havent got enough fabric to redo .... Dont worry about it ... None of us know which fabric you were going to use ....
Translate the above into Mandarin, it will probably make more sense!