A friend spoke of how hard it is to maintain being positive throughout their cancer journey. There's something we all must remember, whether the hiccups in our life are from cancer or something else:
There's no law stating you need to stay positive about it. Get angry, yell, curse, scream, cry, punch a pillow, tear paper, shred paper, do whatever to get the frustration out. Then curl up with whatever helps calm you. Read a book, have a bath, pet your pets, hug your family, make a blanket fort, watch a scary movie, watch a funny movie, kill stuff on your fave video game, or have a nap.
You are allowed to feel upset or down, or both. Permit yourself to be fallible. You may be a super hero to some, but you are a human, you can be negative, you can be frail.