I'm not sure what type of guidance you are looking for here but I'll share first reactions in case they may help.
1. If you are on-track to have a sub 3.0 semester, then change tracks. Work harder, buckle down for the next 50 days. Get tutoring help from the university, meet with your professors/ TAs, ask for help, ask your mentor if there are people who have been through these courses and excelled who can help you. be as resolved to improve in these courses as you are for your goal.
2. Meet with your academic advisor and ask for suggestions.
3. Make sure AFROTC knows where you stand - don't wait for them to find the issue - you should tell them.
3. Ask your professors for opportunities to make up the gap - extra credit, retake, explain what you're doing to get there. Rewrite the narrative young Sir or Maam.
4. Say a temporary aloha/ goodbye to extracurriculars, gaming, goofing off until this is resolved - if you are in color guard, in extra activities to be a great soldier-officer to be, being the model participant with volunteering - ahem - temporarily - knock it off until you are back on a good track.
Lastly is it one course that's bringing you down? Talk to your advisors (academic and AFROTC) about options to switch to audit or pass/fail for specific courses - confirm if that is allowed for both your university, your course of study, and AROTC.
Also discuss options to drop a course if that would help you get above a 3.0 - likely too late to drop, probably not too late to switch to audit, but don't wait - have those investigative conversations by end of week.
Good luck and hope that helps you.if you pose a more specific follow-up then I others can attempt to assist.