My question is only to confirm if anyone can perform istikharah or should it be performed through some pious person?
Everyone should do istikharah for himself, it is proved by Hadith. However, getting istikharah done by someone else is lawful as per Shafai and some Maliki scholars but no opinion of Ahnaf and Hanabila is mentioned in this regard (الموسوعة الفقهية 3:246). So, one should follow which is proved form the holy Prophet Muhammad (صلى الله عليه وسلم) i.e. doing istikharah by oneself.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband