Irritable bowel syndrome is very debilitating. Yiu sound as if you're probably exhausted from it. Have you learnt the art of total relaxation and deep breathing which over a period of time could help you feel physically better. Why not go to your local library or look online for books on relaxation. Start by just lying on the bed or floor, closing your eyes, letting or your muscles go limp. Breathe in deeply for five seconds, hold for five seconds,then breathe out for five seconds.
Practice doing this two or three times a day, letting your mind go completely blank.
You are not useless. Other love and need you. Start the healing process by learning to love yourself a little more, and by looking after yourself. Don't expect sudden miracles. Working at some simple techniques like this every day will gradually help to turn yourself around. And every night, before you go to sleep, do knew last set of deep breathing exercises and remind yourself of three positive things in your life.
And hold onto them as you drift off to sleep