Theory material

Got my theory tests booked. Couldn’t do them all at once so doing theory and hazard perception in a few weeks and case study a few weeks later.
As i sead (above) i havnt got case study facility on my disc but done a few mock tests online on various sites.
Should i be ok the way im going or search online or on disc and pay to practice case studies?

Not being tight but in theory (pun intended) i should know the answers if ive revised enough already?

Rich