Apart from informing you about the disease, which lets you to make rational choices, knowledge decreases fear. A working vocabulary should help you communicate more efficiently. MS is not an abstraction. It is tangible entity and you don't need to be a rocket scientist to master the basics. Along the way you will need to develop a general strategy for dealing with new challenges, one at a time, to divide an conquer.
Some problems are relatively trivial, others important.
Learning how to separate them out and deal with them one by one will help. For example, there are minor flares that don t affect function. Much of this knowledge will be acquired with experience over a long timeframe. You are the expert about yourself and inner feelings which have to come out in some form. Inner turmoil will always be expressed, no matter how hard you try to repress it.