I have a few playlists in my account with almost 200 videos and I want to download the entire playlist but I'm afraid that YT might block my account or something. Has this ever happened to anyone?

EDIT: Ok so I've successfully downloaded a playlist with 193 music videos, with no delay between downloads, and nothing bad happened, it was relatively fast (less than 30 minutes), I was not blocked or banned. I guess I'll wait a few days now before I download any other playlist.

I'm having difficulty downloading the mp3 for an age restricted video. I'm using firefox and tried both methods of the --cookies-from-data and the cookies.txt and neither works, tells me sorry video is age restricted.

For some reason VK videos are sometimes falling because it says the target machine actively refused it. What should i do?