Help me in deciding...

So i want to know whether or not should i (myself) fill the form and all the other things.. Or should i take help of any Nios agent like the one who fill form and inform all the details.. They are charging way too much like 12k, 17k, 25k.... And if i fill the form and all it would cost me around 6-7k ig. So help me in deciding whether or not i should do it myself or took some study center help. Or if any of u have done all the things alone pls guide me or share your experience.