You always have a choice though it may not seem that way right now. Is your family happy seeing you miserable like this? Would they be happy if you attempt suicide because of your marriage? They are your family. They will always want the best for you. If divorce is a way out, then speak to them and garner their support. You will not believe how many family members actually come forward to support you and help you out. In the meanwhile consult a psychologist for your depressive thoughts so that you can take rational and courageous decisions along with getting some peace of mind.