Let's Make Robots!

Beginner Here, Need Some Advice...

Hi,

My Greeting to all of you part of this site, its awesome.

So, I am a student of Diploma in Electronics & Instrumentation in India, & I would very much like to make a robot myself but i am a novice here & don't know where to start.

I have the following knowledge

1) Good Grip on C & some knowledge on C++

2) Knowledge on Basic Electronics, Analog & Digital

Do I qualify the necessary knowledge to understand & build a robot ?

Moreover, how much it will cost to build a primary robot ?