Driver’s test in Malmö

I gave driver’s license B test in Malmö three weeks back. I failed the first test. I gave it using Trafikverket’s car. I made two mistakes according to the report and I worked on those two and gave the test again second time through the school yesterday and failed again but this time he has failed me on 8 out of 10 things that he tested me yesterday.
I am very upset and don’t know what to do next. I have already taken 35 classes almost and it is getting so expensive.
Should I do two or three practice classes and give the test again on my own?
I am very confident that I drive well. I know all the rules. But this is so much effort and very stressful.

One of the reason was that I was driving slow but I was adapting to the traffic and making sure it’s not too risky.
I drive really well in my opinion.

Have you got the same supervisor in both tests? It might vary a lot depending on the supervisor.