Driving Classes for someone with a Driving Licence

Assalamualaikum. I recently got my driving license for automatic light vehicle. Since I do not have any prior driving experience, I still feel under-confident about driving in crowded areas, parallel parking & reverse perpendicular parking. I feel like the classes are just catered to prepare a student for the tests. The driving school also did not finish all the classes that I had paid for. They stated that - in the event I failed, those classes would be added on.

I would like to know if any driving schools offers courses for people with a DL? Does anyone have any experience like this? Would like to know your thoughts and help me out.

Thanks and wishing you all a blessed Ramadan!