Good signal/bars but no network connection many times daily

i’ll preface this by saying i have a less than year old iphone 13. made an entire account just so i could post my frustrating experience.

TL;DR: this is exactly what i tried. open settings > cellular > cellular data options > voice and data > switch to LTE. then i went back to voice and data > data mode > switch to standard. then restart phone. my phone is finally loading things without wifi, and im not having the “no internet connection” problem anymore. maybe this could help someone so i decided to leave my experience.

the issue at hand has been following me from phone to phone ever since i got my first iphone in like 2014 or 2015. even if i had full bars of service and my 4g or 5g was on, if i was not connected to wifi, nothing would load. social media would not load, my texts would take forever to go through or sometimes not even go through, dropped calls, etc and no one else in my fam ever had this problem except me. ive been so fed up to the point where i took my phone in, and tmobile ppl tell me try resetting network settings when that happens. of course as im standing in front of the tmobile person, in the tmobile store, their suggestion works exactly as they thought it would but as soon as i left the problem came back and i would try the suggestion again and it would not work anymore. i have read on this problem SO many times trying to fix it and i think i finally did something right this time. this is exactly what i tried. open settings > cellular > cellular data options > voice and data > switch to LTE. then i went back to voice and data > data mode > switch to standard. then restart phone. my phone is finally loading things without wifi, and im not having the “no internet connection” and "could not connect/secure network" problem anymore. maybe this could help someone so i decided to leave my experience.