Hi Friends I have a couple of questions to the game The Twist
Your 3rd question should have come before your first, because only after you've done this can you get the other Cheerleader outfit from Adrianna.
This cheerleader outfit is one you get from Adrianna to give to Julia as part of a scheme to have Kira break up with her boyfriend, unfortunately it's not available as a daily option for Julia to wear.
To start the massage quest, you should have completed the quest involving Michelle and Rebecca.
as for your fourth question, you only text her to meet you over the weekend at the school so you can roleplay at being a cheerleader and jock, texting her has nothing to do with getting the cheerleader costume, at least not directly. Check what I left for your 1st question about getting the cheerleader costume.
As you can see I have gone through the walkthrough and copied and pasted the relevant sections, I hope this helps, because in all honestly I have no problem following the walkthrough provided, I find it very easy and not confusing at all.
To me the the only reason people seem to be getting lost, is if they have artificially increased the relationship points for the characters way beyond what they should be at the time, because doing so will make you miss A LOT of important triggers, which will definitely hinder progression and cause confusion on what to do.