Banana Flicks from backhand

I have seen all the pros now are returning the serve with Banana flicks and they return short serves comfortably too .

I am a beginner and could return most of the serves with different spins and length but by pushing it mostly which makes me vulnerable for a third ball attack . This makes me loose crucial points .

Also , I feel uncomfortable in opening the loop from backhand but can return the ball well via pushes or blocks .

How to improve on this front .