Need guidance for searching for medical insurance for myself, 25F, USA

I’m reaching out for help or any information for what my next steps should be regarding medical insurance. I’m 25F in the US (GA) and will be turning 26 in April. I know I will be booted off my mom’s insurance (Cigna) before then so I don’t know whether it’s too soon or too late to be looking into this. Either way, I have absolutely no knowledge regarding insurance information so anything would be greatly appreciated.

Due to a genetic mutation, I have to be taking blood thinners indefinitely. I do have health concerns at the moment such as diagnosed hypothyroidism and am working with a psychiatrist on my mental health. Overall, I am stable at this point with my health, but still actively working with doctors to improve (endocrinologist, cardiologist, pcp). I am currently unemployed, and am in college, but I’m due to graduate next spring. I plan on getting a job as soon as possible in my field of study by the end of that semester. I have no income at the moment, but my parent’s support me financially.

Thank you for taking the time to read my post. Again, any information/advice, good or bad, is greatly appreciated.