I started with setting up my own Bitcoin/Lightning node with LND/BTCD, since I was a little more comfortable in the Go ecosystem. Nowadays I would probably use Bitcoind since it is the de facto standard.
As a wallet I often hear about Wasabi and Samourai to be relatively comfortable.
If you want to read/listen first, there are some good podcasts, e.g. Stephan Livera. And Jameson Lopp has a good collection of links for every purpose https://www.lopp.net/bitcoin-information.html .
Bitcoin development is focussed on building a maximally decentralized store of value and thus rather careful.
Only if you do not care about monetary value and just want to play around with crazy ideas that may or may not prove useful in the future, take a look at Ethereum or one of the other altcoins.
To buy crypto, you will need an account in an exchange, so you can exchange your fiat currency (dollars?) by crypto. Binance and Kraken are popular choices.
For keeping up with developments and meeting other hackers, Reddit is the best forum so far. The Hacker News crowd usually don’t dig crypto currencies for whatever reason, so it’s a little harder to discuss them here (but count me in!).
The hype isn't worth it.