Intensive courses don't suit everyone; they suit those which can't commit to weekly lessons and who have previous driving experience. You need to be someone who can take in lots of information over a short period of time and be able to maintain concentration, to make full use of intensive courses.
It doesn't necessarily suit those that are slightly nervous or timid, and need to take more time over the information and skills that they are learning.
You need to be honest to yourself, maybe weekly driving lessons would suit you more than an Intensive course?