Could I get CM?

just ask @Mantram_Patel

...

lichess.org/help/master#:~:text=If%20you%20have%20a%20FIDE,title%2C%20please%20complete%20this%20form. See for more information @FIRD4US_10

How do you get a title?

OK @TallMagicalFlamingo

if I FIDE rated I CM ?!?!?

#16
You need > 2200 FIDE for CM
FIDE now also has ACM, far easier to reach

#18
No, CM > 2200 FIDE
handbook.fide.com/chapter/B01Regulations2017

ACM only requires > 1100 FIDE
handbook.fide.com/chapter/B11FOATitlesForLowerRatingBand

maybe..............