Yes, i know how you feel. I'm also sort of a beginner as i started detailing a few months ago. The results will amaze you if you get original products and use them in the proper way.
Use either mothers(about 2000 rupees) or meguiars(about 3000 rupees) clay bar. Both are good but meguiars is more aggressive meaning it has more cleaning ability. This will give very good results on your 2000 rolla, again if used properly and bought original.
I don't know any authorized shops in Peshawar but you can ask here if you don't know, pakwheelers will guide you.