I have my Extra class ticket (AJ4CM) but I've been off the air for a few years. One of these days I'll get back to it. In fact, there's an HF radio sitting on the shelf behind me, but I need to string an antenna. Once upon a time I served as a Volunteer Examiner and helped administer license tests, and I was part of our local ARES ("Amateur Radio Emergency Services") team. Life and other interests got in the way.
VHF/UHF, where you should start, is used for local comms and for repeater access and requires a Technician license. You'll be limited to those bands and you'll have power limits, but there's still a lot of capability there. The next step up is a General license, which will allow you access to the HF bands and more power, and with that you can talk around the planet. HF radio waves reflect off layers in the atmosphere and can travel around the world. I've talked from Central Florida to the south Pacific, Japan, Russia, the Falklands, etc., using nothing more than a wire in my trees and a 100W transmitter. The highest tier is an Extra license, which opens up more frequencies for use.
It's pretty easy to get started with a Technician's license and a handheld radio, assuming there are repeaters in your area. Some repeaters are connected via the internet using Echolink, so if you have access to such a repeater you can connect it to a similar repeater across the country or across the world and talk all over. One of the snowbirds in our group lived half the year in Britain, and while he was there he often used Echolink to join our local repeater nets and ragchews.
In fact, if you get your Tech license you don't even need a radio to access Echolink. Just install the SW on your computer and you can talk over repeaters with a headset plugged into your PC.
https://www.echolink.org/
BEWARE - it's not hard to start with this,

and before you know it, your bank account has been converted into this.

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NOT MINE, THANK GOODNESS!)
It's not uncommon for clubs to pool resources and build elaborate stations, often with a goal of competing well in contests. For a while I was part of a club at LockMart, and we had a good station installed on the roof of a tall building with some decent antennas.