Facebook used React internally before releasing it. Every new web front-end at Meta is written in React. They also had a convincing story of how the runtime expands beyond the web (React Native etc.)
With Angular, you’d be hard-pressed to name a Google service built using it. It seems to be a framework created condescendingly for the ordinary others, not the Mountain View geniuses themselves. That’s not great marketing.
I'll give you one tip.
Look at a graph of bitcoin, litecoin etc. that extends past the last bubble and collapse and ask yourself if you are willing to eat those kinds of losses if they occur again.
https://99bitcoins.com/wp-content/uploads/2014/02/bitcoin-ma...
edit: since everybody is asking the same question about habit forming. I am just passing on the information that I got from my doctor. She made this suggestion to me, and it was beneficial to me. Once I had started using melatonin, I would have trouble falling asleep without it. Valarian root didn't cause that issue for me.