New to raspberry and blynk

So , I downloaded the blynk App and I have a raspberry pi 2 and II went through some posts regarding the use of blynk on the pi and in the end , I am still confused and don’t know what to do next or rather first so that I can directly communicate with my pi using my phone
So , I want to if there exists some easy video tutorials on how I can do stuff using pi and the blynk App.
And I want to tell you that I know python and c and have just started with my pi board.