You can’t control other people. You can provide your opinion about what you think your sister should do, but she is under no obligation to take your advice. Everyone has the right to decide what they want or don’t want to do with their lives.
Make your case for why you think she should seek help but after that, you’ve done all you can. It is difficult to watch someone you love suffer, especially when you know that help is available. Unfortunately, there is little else that can be done. The only times that you would be able to force her to seek treatment would be if she were a danger to herself or to others, or if you were her legal guardian. Otherwise, your options are limited.
Also, her not taking your advice is not a personal attack against you. Many people don’t seek treatment for mental health problems because of fear or denial. Those problems can be difficult to overcome.
Perhaps, someday, she will take your advice. People often seek help when they are ready. Until then, try to be understanding, patient and supportive. Understandably, that’s not always easy. Please take care.
Dr. Kristina Randle