Yo. Pretty - and pretty clear.
That being said:
So if the pool is very full and your transaction didn't go through after a few hours.
"In Case of FOMO". Last sentence. Has no meaning, even in context.
Besides, "very full" is redundant: you're assigning comparative quality ("very") to an absolute value ("full"). Try "densely filled".
On inline style vs using a stylesheet.
EDIT: also, are we shying off naming Reddit now? Is this our nemesis now?