You need to have more than letters from friend and family because those can be forged. Not saying yours are fake but others have done that. A letter threatening your life, text threats, photos of raids of your residence, time in jail, signs of torture, articles about your opposition work, posts where you opposed the government are items needed in conjunction to letters. I wish you the best but it doesn't seem like a strong case for H&C. You neer know you could get lucky. I assume you were too old to be included in your family's application. I assume your family didn't apply for refugee status and that is also a big problem for you file.