<human>: Can you give me the gist of the text in a nutshell?

My first TIFU, and as i am a relatively new driver, i thought id test my skills by taking my poor pet cat to the vets to get him checked over. Anyway, i dont have satnav, so was going kind of blind/off the top of my head in terms of getting to the vets.

I did have maps on my android so that kind of helped. Carrying on, i head out, its like coming up to rush hour, i was like no biggie il be fine. I make my way and get onto a pretty big road with multiple lanes, and as drivers who usually are making it up as they go along, realised that i was in the wrong lane.

Now, i did indicate, i checked over my shoulder, and then crossed over into the lane i was meant to be in, from what i knew. All of a sudden i hear a loud honk, i carry on driving until traffic comes to a halt again. A few seconds later a lady pulls up next to the side of my car, in a black BMW, pulls down her window and says, "you pulled out right in front of me", in a really angry voice.

In that split second i considered a few things, do i say something back? My passenger side window doesnt work, so thats futile, or should i just stare her down? A few more seconds later, all i could muster is to oddly raise my left hand, palm facing out, up at her. At which point she looked perplexed and drove off.

Suffice to say rattled at peak time, but i can understand her frustration.
<bot>: tried switching lanes, nearly went into another car, the driver drove up next to me, i palmed her off.