treatment for sugars congestive heart disease

Hello My baby sugar has been dealing with congestive heart disease for a couple of months now. Unfortunately, it’s a progressive disease that can only be maintained with proper treatment and medications. She was doing really good but I ran out of medication and it’s super hard to find and on top of that, super expensive and with a part time minimum wage job it’s a struggle getting her everything she needs. Since she hasn’t had her medicine her health has been progressively getting worse. She’s been having seizures and difficulty breathing properly due to fluid in her lungs. It’s a lot, and I’m trying my best to do what I can for her but medical bills are piling up and I just can’t keep up. She’s my best friend and I’m not ready to let her go. Please consider helping us. Thank you so much.