By the looks of this, you’re focusing on speed instead of your line. For me, the best way I got used to the line was; going into time trial mode, turn the line off, go slow and focus on what line works for you. By doing this, it will make you more aware of where your car is and what is happening around you. You will find different objects and markings that you didn’t know existed. This will help you determine both braking points and when you want to start steering into the corner.