You can follow this official link to learn more about
Coast Guard Pilot requirements, and some entry options/paths. You can also connect with a recruiter via a link on this page. Just be skeptical for any "should be OK" assurance from a recruiter - validate all details. It is certainly possible to enlist and apply to OCS and then apply to flight school, but it's a path that may take more than one try/ years of service. You could also explore taking courses toward a college degree remotely/ globally, including some very affordable community colleges in the US who offer this. In that regard you could earn a degree/ pursue OCS for USCG as an officer path. Further you could explore taking flight lessons and gaining a foundation/ certs in fixed wing or rotary wing flight, though before you take a single helicopter private lesson, be sure to research what you can do with that commercial license, and what you cannot. Research what flight certs/ x hours of experience do for a direct commission path option, if at all, with the CG or other US military branch that has pilots. Confirm if it's only military pilot training they are interested in. Lastly, explore DEA paths for pilots as a career path, too.
Assuming you'll be a US citizen (Dual or other) when you apply?
Good on you for getting your GED. The ASVAB will help for an enlisted, not officer path fyi. Were you one of my children I would recommend you pursue remote coursework after you get your GED, confirm all path options so you can work toward your goal. Good luck to you.