Well it is good to hear that you have finally got a clear DX and are being properly cared for.

It will take a while for the Cell Cept to take effect. Mestinon is much quicker but much shorter effect. Pay attention to your breathing muscles, if in any doubt go to the ER. Breathing is the most important thing, and the one thing that can cause serious problems.

Get plenty of rest, and avoid stress.

And if you have any questions ask them here, there is usually someone who has been in that situation before.