driving problem

So I'm 17 next week and I have my learners. I'm from Australia and your get your learners at 16 and at 18 you can get your P's and drive alone if you've done 120 hours of driving. 
My mum is a bad passenger and gets nervous when anyone is driving. Even a really good driver so she gets nervous when I drive. And I'm a very anxious person and it makes me worse sometimes and the fact she doesn't want me driving on the main roads yet makes me feel like I'm not good. 
I only have 2 hours so far and need a lot more by July next year. I feel like I'm never gonna get my licence and my mum doesn't have much time to take me for drives. 
What do I do? I see all my friends driving everywhere and all I do is drive in quiet streets for like 10 minutes at a time