Why do I feel less for declining my UP offer?

Hello.

I declined my admission to UPOU for making a "practical choice" of enrolling at PUP with an engineering program. But why do I feel less of a student? Does studying in one of the Big 4 really matter in terms of employment? Should I pull out my requirements and go to UPOU instead? College is scary and I don't know whether I'm doing the right decision or not. Please share your insights with me 🥲 Salamat.