Welcome back Cheryl
You need to prepare nah
Start reading your book or
read your book 2 weeks before your test (This is what I did)
It was bad because I sent my application 2 days before my visa expired
I wanted to apply ILR in just 1 day but not allowed anymore.
It was my fault for being so busy but then still lucky as it was approved.
No matter we will wait 3 months which is the longest I think. As long as it is approved.
Hope you'll pass the test and approve fast
GOODLUCK!!!