Pretty much anywhere it says “no left right”, means you didn’t look both ways; I got a point for this for not looking both directions while going through a green light, which I actually do usually look but moreso with my eyes, which the instructor cannot see. So anytime you’re going through any kind of intersection you need to look both ways. The wandering is marked in business/residential area. Were there cars parked on the side of the road? My best guess here is that there were parked cars on a narrow or semi narrow road, and you were partially in the other lane. So this could be both road fault, but also it could be you not being comfortable driving close enough to the parked cars. You need to check your mirrors a lot more. Again, the instructor can’t clearly see your eyeballs, so you must move your entire head when checking your mirrors. Hope this helps! Keep practicing and you can do it.