How should i talk to a recruiter with my situation?

Okay so im not gonna bore you with the details, never bin good with school, got suspended or whatever the temp ban from school is called about a day before the end of 8thy grade but it still counts as completed. So that was years ago and im 17, turning 18 in december. I have a job where i do demo (if your wondering) but i plan on buying a laptop at the end of the month to start home schooling so i can learn enough to get my ged which as some dont know is now accepted in the army and marines which happens to be my two choices, looking for a combat mos like 11b or 0311 thats all i want i know you have to score a bit higher on the marines asvab to get in with a ged it doesnt matter. But heres my real question. Should i talk to a recruiter now or when im working on it? As far as questions about about the marines or army that a recruiter would lie on go, i have a brother in the army and a retired uncle who was in the marines and marsoc so they can help me with that.