Dysphoria is like having a small scratch on your car and feeling like the paint is ruined, the car is undriveable, and must be repainted. That's how you feel about your gender. Any little thing that you see wrong is screaming the wrong gender (in your mind). Big fixes can help. One must hope they are enough. Or you can get caught fixing increasingly smaller details. Or continuing to obsess over them and never being happy.
The pink fog. It's only pink because it relates to us in this discussion. Its really. Just the excitement of something new, whatever it is. It could be a new car. It could be a new Relationship. It could be a new job or career. It's easy to be all excited and gungho. One needs to gauge your actions for the long term. How many people start a new hobby and jump in all the way? Buying the best gear or equipment or whatever. Only to realize shortly after they're not as fond of it as they thought. Slow down and pace yourself before you make any life altering changes.