User blog:CureHibiki/Photokatsu Help!!!

I would have posted this on Aikatsu wiki however it doesn't seem very active compared to this one and I kind of want some help right away, if you get where I'm coming from^^

I recently started playing Photokatsu and I still have no clue what I'm doing. I'm someone who usually only plays Love Live School Idol Festival, where everything is very easy to understand. However, Photokatsu is really difficult to understand. So I have several questions and hopefully someone can answer them for me.

There are plenty of other things I am so confused with but if it helps...just write a beginner's guide, because...google sucks. Google gave me no answers to these questions. So yeah, please answer these questions and maybe even add some bonus tips/advice/helpful information~
 * 1) How do I get those blue stars so I can scout for 11 cards right away? I managed to collect 50 yellow stars and do two single pulls, which gave me a Yuu SR and a Otome PR. However, I don't wanna spend all my yellow stars to do single pulls. I want to be able to do those blue star pulls without saving 250 yellow stars to do a 11 card pull. So how do I get those blue stars? Plus, if buying them is my only option...then that is so stupid...
 * 2) How do I collect yellow stars? So far, I've only managed to get them via log in bonuses but there has to be other ways to collect them too, right?
 * 3) I keep getting these "B" cards, or Blue Cards, as I like to call them...what are they for? They remind me of Scouting Tickets from Love Live School Idol Festival, but there is no option in the gacha area to scout with them...
 * 4) Event question time..how do I play this current Ran event? I somehow got the Sora PR from playing one song and I tried reading the rules but it told me nothing. So how do I how play it and maybe give me a run down of other events?
 * 5) Is it common to keep getting misses in songs? A lot of misses to be exact. I'm pressing the notes exactly when I should be...but apparently I am not. I'm trying to figure out if it's because of my laggy tablet or if it's because I have crap cards...Getting all those misses is sucking the fun out of the game.
 * 6) Is it common for Aikatsu to load for ages? It's bugging me so much...