Would you guys suggest for a beginner to focus on mining solely bitcoins? Or would you say that it's smarter to mine for the other digital currencies out there?

I'm fairly new and I've started researching about BTCitcoin and cryptocurrency. I'm aware that there are a lot of information I can easily Google and read regarding this topic, however, I find it easier to learn through videos and podcasts (especially YouTube ones) and I can't find the best ones.

Do you guys have good YouTube videos or podcasts that you'd recommend, especially for beginners? I'd love to understand cryptocurrency more as well as start learning about investing and trading.

I'd appreciate it a lot.