I discovered that I am Colourblind..

Today someone showed me this image and asked me to read but to my surprise I was not able to read a single letter the only thing I can see is many colourful dots. Hence ladies and gentlemen I am Colourblind I was shocked because I usually had arguments with my mom about differenciating some shades of colours but now I know why. Any of you also Colourblind? Plus-: also preparing for NDA and heard that candidates with cb usually get eliminate in ssb.so I am absolutely fu****