Thanks! Lekin firstly- everything i have learnt is by reading and understanding both parts of this thread! I remember 2-3 years back, i came to this thread for the first time after applying formula one wax without even washing. Amir bhai helped me out and i since then i never looked back!
Anyways, wax application can easily be done by hand, no need a buy a polisher. Polishers are used for paint correction and frankly speaking, the good ones are very expensive and the cheap ones just don't have enough power! Buy a good quality shampoo and a proper wax and regularly start detailing your car! You will not regret it! 
Note- stay away from all these desi cutting creams-they are very abrasive and excessive use can also result in clear coat failure. Stick to quality products only and nourish the surface you have!
