My (F 30s) car died recently so now I can’t be the driver till I can save up and buy a different car. My issue is that I’m finding it really hard to be a passenger and not be scared or get pissed off when others drive! They’re very kind to have me in the car, I just don’t know how to not be worried or how not to get annoyed. My friend learnt how to drive in another country, and she’s not as careful. For example, when she turns into a street, she doesn’t stay in her own lane, she drives in both lanes. We almost had an accident the other day and she thought it was the other cars fault. I’ve noticed she also drives on the white lines so very close to the other lane. This is just one example. 
I also get very worried about my mum. She’s young enough and she’s been driving for a long time, but she can get lost so easily and can’t follow “left-right” instructions properly, and there are other things too. I feel bad I probably was quite mean sitting next to her freaking out saying “slow down!”, “change lanes to left”, “don’t stop!”, “careful with the car!”, etc. and I feel there were few near misses. 
I miss being the driver. How can I control myself when I’m in the car with others and don’t feel I’m going to die any moment? Lol 

I do consider myself a good driver. I follow the rules, if I miss an exit or something, I don’t freak out and do a sudden movement, I stay in my lane and indicate whenever it’s needed. 

Tdlr; how do you tolerate bad drivers?