I am also fairly new to crypto, and I will attempt to answer your questions.
- If you are based in the US, coinbase is a very user-friendly and simple exchange. However, their selection of coins is not as vast as some other exchanges, and some users complain about fees. If you are looking for something a little more advanced, I have had a very positive experience with binance . com
- I find Mediumhas a lot of useful blogs. Specifically, the hacker noon page posts a lot of interesting crypto articles from a variety of authors.
- I just recently discovered the DApps channel which is great for approaching blockchain from a developer’s perspective. The videos are long, but they are dense, not filler.