How to buy GMT token?

I'm interested in learning more about how to acquire GMT tokens. Could you please provide a step-by-step guide on the process? I'm new to the cryptocurrency world and would appreciate any insights you have on choosing a reliable exchange platform, setting up a wallet, and executing the transaction securely. Also, are there any particular factors I should consider before investing in GMT tokens, such as market trends, token utility, or project roadmaps? Your advice would be invaluable in helping me make an informed decision.