cracku varc is very difficult, i'm feeling demotivated

Cracku VARC is at par with CAT. No need to feel demotivated, this is what you should be expecting on the D-day. Devise a proper strategy before attempting any test. Discuss with your mentors and peers and identify your strong and weak areas.

Don't worry these difficult ones will only help you to grow your skills, keep analyzing and refining. You yourself will start to see the progress.

give time sectional test.u will feel little bit motivated after seeing this

I found it on par with CAT. Read more and practice more, you still have a lot of time.