Guides and tips for L2 certification

Hello,

I address you because I’m trying to get the lvl2 Appian certification.

So, I would like to know if you would have any guides, tips, tricks, notes which could help me please ?

(I’ve already took in consideration the Online Appian help, the Appian playbook, and advanced online training subjects, and of course the practice test)

Maybe do you know some other pratice tests which could i try ? some Appian performance exercises for example...

Regards