ANSWER:

 A layman can’t pick and choose what he likes without being a student of knowledge who knows Arabic as this would be cherry-picking 
You can’t pray istikhara for such issues 

There is an issue of dispute about a fiqh issue. I researched very well the 2 opinion.Approached scholars. I choose the opinion which is very strong about evidence & also the majority. Now my mind says to me maybe ur opinion wrong. do Ishtikhara may be Allah will give you hints which is right. I’m afraid of being confiused after doing that. If I avoid Ishtikhara sinful?

Principles of Fiqh |