buti nga ngayon may mga review classes na. during our time, walang review classes. stock knowledge lang talaga from your 4 years in HS. only about 10 of us from our high school made it. ayoko ng sabihin kong kailan ako nag graduate sa UP Dil at baka mabuking pa ang edad natin, hehehehe

from what i know, UP Dil is the hardest to get in, then UPLB, then UP Visayas. it also depends on your course if quota course or non quota course

if you want to increase your chances of admission, then select the non quota course. you can always shift later pag nasa loob ka na

i guess psychological lang lahat yan. get a good nights rest, eat properly and be mentally prepared

good luck bro. kaya mo yan!