How does one fail to get Tamara scene that progresses the school club? I keep trying to g and meet requirements but the scene just goes on normally or repeat things I've already seen. I used radioactive mod btw.
Depends on the scene you're stuck on, really. I'll assume you're talking about tutoring Tamara.
First, you can lock it out completely if you follow her downtown after school. Don't do that. You can tell it's over if she is acting cold during your tutoring sessions. There is no recovery mechanism in-game.
The tutoring itself takes more than a few interactions. Each time you tutor her, she gains some small amount of Favor (1 if you didn't confess to being an informant during your introduction to the group, your Natural Mental [typically 1-3 but can go as high as 5 from Initiative HIIT training] otherwise).
Once her Favor exceeds 40, further tutorials have her Love increase by the same amount (and a Talent check [Leadership I think] to increase Lust at the same time). So, if your Natural Mental is as high as 3, that's 25 sessions -- 14 tutor sessions to increase Favor followed by 9 more to increase Love. If you're getting 1 each time, that's 65 tutoring sessions.
Once her Love exceeds 25
and you tutor her on Monday she'll offer to hang with you after school and the situation will progress. Stay in school the whole day and meet her after class. This section of the mission is brittle.