When do I start looking into getting help? My mom's health issues aren't getting better.

Since the pandemic I've been worried about taking my mom to her doctors appointments. I started trying to spread them out and pay attention to the most important ones. She has soooo many issues I'm not sure I can deal with it all.
Her eye doctor found Muscular Degeneration and she needed an injection in her right eye. She'll have to go once a month now.
Her Neurologist found out her spine has serious problems but surgery is out of the question due to her age (She's had two back surgery's). She has to have spinal injections done asap. The spine issues are causing severe nerve damage. Numbness in her hands and her right leg has 95% nerve damage causing her foot to drop.
Knees too! One knee is turning in because she didn't want knee surgery years ago. Also, she has AFib.
Today was her mammogram appointment. She has had cancer in her right breast (2005) and was worried about that. Now!!! They found abnormal tissues in her left breast and she has to go for a biopsy on Friday.
I am worried about keeping up with all of this and taking care of myself and my family. I feel like I need to start planning to get help. Transportation for one! What if she has to get treated for this breast issue and needs to go daily for treatments? Am I jumping the gun? I don't want to be naive and have things fall apart without knowing what to do. My mom is 87 years old!
Any advice will help. She does have an option for veterans benefits and I've been holding off until she felt or I saw she needed it. Should I start the ball rolling?
She gets up at 5:00am every morning and gets herself ready for the day. She is in the kitchen at 8:30am every day. Her breakfast is always waiting for her. I fix her meals, wash her clothes and set them out for her each day. I take care of her meds, schedule doctors appointments and keep her bathroom and room clean. Suggestions Please!!