I'm relatively new.

This is my second event. First time doing a "star rush" type event.
I have completed 5 maps., 3 of which are 3 stars.
I failed badly on Desert battle X. No way will I complete that!!
However I have completed Desert Brigands about 10 times.

I have yet to receive a star. I have received 4 Lady Rogue Harissa's drops. How do I know haw many stars I have?
Is it counted anywhere?

I'm level 88 with about 5 units evolved, 0 units awakened and am hoping to get a low level Shuka, so 15 to 20 stars, hopefully.

Thanks