Hi, I'd like to help you with your question.
It sounds like you are depressed. The fact that you are thinking about suicide means that you need to act now to help yourself. Are you seeing a psychiatrist? If you are, mention this symptom to them. Have you also mentioned your feelings to your therapist? They need to know so they can help.
Have you tried educating yourself about depression and your feeling of hopelessness? There are many resources available to you. Here are some suggestions:
The Cure for the Chronic Life: Overcoming the Hopelessness That Holds You Back by Deanna Favre and Shane Stanford
Out of the Nightmare: Recovery from Depression and Suicidal Pain by David L. Conroy
The Cognitive Behavioral Workbook for Depression: A Step-by-step Program
(Workbook) by William J. Knaus and Albert Ellis
Have you also considered the spiritual aspect of your life? Sometimes, when nothing else works, exploring your beliefs can help you feel hopeful. If you attend church, consider talking with your pastor about how you feel. It is easy to lose perspective when you feel hopeless and talking about your spiritual feelings can help.
If you feel that your current therapist is not helping, you should consider switching. Sometimes, finding a good therapist is like finding a good doctor- it takes a few tries before you find a match. You can talk with your doctor for a referral or you can search on line at http://therapists.psychologytoday.com/rms/.
If you start to feel worse and your suicidal feelings increase, go to the emergency room immediately. They can do an evaluation and possibly admit you if necessary.
I hope this has helped you,