Thomas's mom, you will receive The Form Letter, which will let you know the PIR date for sure. It will arrive next week--ten days after the recruit's arrival at the RTC is average. Arrival and What Happens at the RTC within Boot Camp Moms (and loved ones) will let you know what is happening and what to expect.
Check your My Page.
Thomas' mom, you will get used to the new normal. Does it get easier? I don't know. Each person is different. I didn't cry when mine headed off to BC, but at odd times over the 6 2/3 years he was in the Navy, I would find myself tearing up or worse over the smallest of things.
Please do check your My Page and make the changes.