A few questions from a couple of rookies

Hello, everyone, me and my friend picked this game recently and we have been struggling, beating killing snitch in 1,5 hours and orphanage in 2,5. Game seems hard and I hoped to hear some tips from u on how to better evade enemies. That driller woman deals too much damage and psychosis is hard to reliably survive without antidote. Should I play it more stealthily and slowly or more like DbD? What perks from pharmacy and rigs are better for beginners? I picked Stun and my friend picked X ray for a time being. TLDR We really like gameplay, however we suck as newbies, plz give some advice.

Thank u for attention!