Please Define the Following Terms or Concepts in No More

Please define the following terms or concepts in no more than two sentences, and give an example to support your definition.
A) Acceptance
B) Awfulizing
C) Blaming
D) Brief grief
E) Catastrophizing
F) Cognitive distortion
G) Cognitive restructuring
H) Flexible optimism
I) Information-processing model
J) Magnifying
K) Neurolinguistic programming (NLP)
L) Perfectionism
M) Pessimism
N) Polarized thinking
O) Magnifying
P) Rational emotional therapy
Q) Reframing
R) Self-talk
S) Serenity prayer
T) Shoulding
U) Thought stopping
V) Toxic thoughts
W) Victimization
X) Raising one's vibration