How does setting up a iphone phone plan work? (Payment vs gb storage?)?

I'm planning on getting a iphone xr in October… But I was looking at the iphone phone plans and they seem to vary and are kind of confusing since this will be the first phone I ever by myself. Anyway… If you get the 64gb iphone. But you get a phone plan that only has 30gb on it, do you still get to use the other gb's up on your phone for storing pictures etc? Or does taking pictures not count in the phone plan? I don't really want to spend $400 a month on a 60gb phone plan yet. Because if I get the 30gb phone plan (with verizon), it would only be $185 dollars a month which seems way better to me. Should I go with this plan for a year first? Are iphone phone plans really this expensive?

P.S. How would paying for a 30gb amount phone plan work anyway with a 64gb storage on a phone? Does anybody have this type of plan with their iphone w/ Verizon? Any advice for this would be really helpful. Would a Sprint plan be better? Thanks & sorry for so many questions. It's my first time buying my own cellphone…

Added (1). (Buy Myself) Sorry TYPO!

Is a new iPhone worth waiting for?

I've been working through the summer to pay bills and tuition, but with all the financial growth i thought maybe i could use some for upgrades in my life. Ever since i got my first phone at 14, its been hand-me-downs since. Now i'm actually able to afford a brand new phone but with the rising costs, is it worth it? Or should i stick with my iPhone 7 til their obsolete?

Lost my phone and i don't think i have any way to find it?

I lost my phone in my room and i don't have any way to make it make any noise or track it. I can't call because no sim, can't track with Find my iphone because it says it isn't connected to the internet, and can't use Facebook or anything like that because it's either silent or dead. I really don't know what to do anymore, i've looked through every room it could possibly be in. Is there some way to remotely access it?

How do I turn off the amber alert on my phone?

Yeah you know i was trying to sleep last night and that ambre alert woke me up. I didn't even kidnap anyone so why am i the one getting woken up? How do i turn it off? (iPhone 4s on us cellular if it makes a difference)