if i send a text of 'hey i hope u remember we're meeting tonight so don't get too excited

im leaving now but i have to see some people and do some things 1st on my way down but i'll be at yours to pick u up at 9pm so be ready and changed

ok? i'll call when im outside your place.'
is this ok? or should i remove the the first sentence?
cos i imagine that if i send this in afternoon notifying her with enough time to know we're still on and not make other plans, whereas if i leave it till before i leave she may already be out.
if i added something at the beginning like: 'hey i hope u remembered we're meeting tonight, i'll be very disappointed in u if you've forgotten. i'm leaving now so don't get too excited

i have to see some people and do some things 1st on my way down but i'll be at yours to pick u up at 9pm so be ready and changed

ok? i'll call when im outside your place.'
i'm planning to send this around 2pm giving her enough notice in advance, does this give her too much time to cancel on me? cos the risk is if i leave it till 8pm she'll have already made other plans.