PLS HELP ME! iphone 15 or 16?

HELP PLEASE!! (I would really appreciate some help on my doubts)

I am a 16 year old, And I LOVE apple, i currently have a 7plus and I chose to not upgrade because I wanted to focus on school

But now, I have to decide between the iphone 15 vs the iphone 16, from reading all your reviews, the iphone 16 sounds like a battery DISASTER! but you know how an apple fan feels about a new phone, I really want to get the 16 but at the back of my heart i fear i'm going to face issues like all of you, I plan on using this phone for thr next 3 years and then later buy a better iPhone.

My priorities for an iphone are definelty camera and maybe software idk, i can handle a slow processor idgaf

Kindly help me out!! is it the 15 or the 16?

edit: pls only help me choose between a 15 and a 16, not the pros, i cant afford em