What can I do since my life is coming to an end soon? I am wondering why you made this statement....Everyone's life is determined by God and we do not know when the time or circumstance of our death will be...Sometimes a person may be given so many months/years to live by the medical field but I have seen God prove this false. Some people want to end their life due to hurts that are within but I can truely say this is not the way...If you are hurting within come to Jesus...Do not turn away from Him...He will gladly accept you no matter what you have done or endured....Jesus Christ came to seek and save those who are lost....Jesus Christ came to heal those with broken bodies and broken hearts....Jesus Christ came to set those who are in bondage/sin/under the power of Satan free....He is greater than any doctor/phychiatrist/medication for He created you and He knew you before you where born and He knows how your mind and body are knitted together.... You are very precious to Him and He wants only the very best for you and your entire life....
I also see by your post that you say you cannot talk to anyone since they have their own troubles...Jesus is not to busy... He wants you tell Him about your troubles...He will not be overwhelmed and shocked by them....Satan is able to convince us of great untruths when we become isolated from Jesus and Godly counsel.....If you are not attending a church, I would encourage you to be in service the next time the doors are open.....Not just any church but a church that believes in the entire Bible and still does what is proclaimed in Matthew 28:19, 20 and Mark 16:17,18....Any other type of church is nothing more than a social club....

Blessings.....