Welcome to the habit, bro!
To get started, you will need a good amp, DAC and speakers, and below are my humble starter kit recommendations (there are some in our pre-owned section):
1. Amplifier - if you're just into 2-channel stereo (Hi-Fi), an integrated amp will be best, if you're planning to expand into HT, any good AVR (audio-video receivers) that has reputation for both Hi-Fi and HT (e.g., Yamaha, Denon, Marantz)
* NAD- any, from the 320BEE series up (the newer ones employ the latest innovations, plus assures you that no parts will conk out yet); I started with this, and this got me hooked into Hi-Fi (very good stereo imaging, strong bass - important for beginners and the type of music the young like you listen to, and overall music reproduction), compatibility across wide range of speakers (i.e., able to drive most, given NAD's legendary power topography).
2. DAC
* There is an incredibly cheap USB DAC (sold by FrancisD) which you can get started with, to the higher end Cambridge DAC Magic (if you get your amp cheap and can afford to splurge on your DAC)
* Cambridge DAC Magic - clean and analytical (some will consider it "clinical") - you won't need this if you opt for the AVR route, most of which have direct optical input to a built-in DAC
3. Speakers (and how I would rank them in terms of price-to-sound value): Mission, Anthony' A-Audio, Paradigm Atom, Monitor Audio Bronze (Br1 to the new BX1).