Without more information what exactly you want to do/learn, that’s kinda hard. Racing? Acrobatics? Micros/Woops (flying in your home/garage)? Drone as a cinematic camera (DJI-style) or faster camera work (chasing motocross riders for video for example)?
Also specific recommendations for hardware heavily depend on this and just personal preference, and what else you might want to do with the radio and/or video equipment. As an introduction and overview, like someone else has already commented, check out Joshua Bardewell on youtube. He literally makes everything from introduction, basic tutorial, to advanced guides and deep dives into anything drone-related as his full time job.
Because they don’t want you to host things at your house, even though that’s perfectly fine from a technical standpoint. They might want to sell you a “business” line for this, or they just don’t want the traffic (since at least in my area, traffic is always included in any home Internet connection).