Help me get a new wheelchair

Hi, I'm Ashley. I've been in a wheelchair the last 17 years due to a car accident at age 14. I was completely independent and fit in my normal wheelchair until a year ago. I had a surgery and my body did not react well to it and I had a bunch of complications. Due to those complications, I have been mostly bed bound because my legs won't sit right in my daily wheelchair. I'm trying to get back to a new normal and be able to be present in my twins life, and to give my grandmother a break cause she's my primary caregiver until I can get back to a new normal. Any help is much appreciated. Thank you so much.