Try to get that starter going today if you can. You need the time.
At room temps 24 hours for a starter is usually enough. But if the yeast is older (look at the date) or was damaged during transport (mail order hot or frozen truck for 2-3 days) it may need another day or 2.
Yes, smack the pack. The only way to confirm the bubble inside has bursted, is that you can't feel it anymore. Smack again until you're sure. Do this at least 3 hours before adding to starter wort. Shake really well, then leave the pack on counter. You may shake it vigorously every now and then if you want. It should swell up during that time, which means your yeast is viable. Shake again vigorously before adding to your starter wort. For more info, read instructions on their website and around here on HBT or elsewhere. Getting a sanitary transfer is paramount. Sanitize everything well.
Cold crash in fridge, never freezer. Now 2565 is a slooow flocculator, so keep in fridge as long as possible. Remove from fridge
after your wort is already in the fermentor, then decant the starter beer on top, leave a little behind so you can swirl it up. Leave the flask with slurry on the counter for an hour to warm up or help it along by
slowly warming it up in a small tub with some 50F water for 5 minutes (swirl every minute), then add some warm water to the tub to get it to 60F and swirl again every minute for 5 minutes. The idea is not to shock the yeast. There are other methods.
There is another method "
Shaken not Stirred" (do a Google search, there are some details missing in his original post) but you'd need a larger vessel for that like a gallon jug at the least, 5-6 quarts is better. You'd use only a quart of starter wort. You need to shake it like it owes you money for at least a minute until very foamy. IIRC, that needs to be repeated a few more times. Timing seems essential as you pitch when the starter is at high krausen. Do not use Fermcap in the starter, you NEED the foam for this to work. The whole starter gets pitched at the right time.