Welcome to the forum @fatenissa - The advice given above is all good. While your overall GPA may not be great, make sure that your recommendation letter writers focus on the fact that you have done well over the last two years of your studies and that you have done research significant enough to be published. Apply to several of the more selective graduate programs but apply to at least one program that is not quite as selective. There aren’t that many Aerospace Engineering PhD programs out there and you can identify the right ones by looking at the research being done by the faculty which matches your interests.
Good Luck!