How do I get GRT?

I'm really curious about cryptocurrency, especially GRT. Could you please tell me how I can acquire GRT? Is it through exchanges? Or do I need to mine it? Are there any specific steps I should follow to get started? I've heard of staking as well, is that an option for earning GRT? I'm a bit overwhelmed with all the information, so could you break it down for me in a simple way? I'd really appreciate your help in navigating this new territory.