Thanks for your question.
You are probably suffering from major depressive disorder
.The symptoms of the disease is low mood, hopelessness,worthlessness, easy tiredness
,loss of pleasure in almost all day to day activity,guilty feeling feeling,reduced sleep and appetite and suicidal intent or thought.
is usually a problem in thought like you where people think wrongly that his family member not sympathetic to him,not giving time,not taking care properly but in reality they are not true.
So you please consult a psychiatrist
urgently as you have already suicidal thought and discuss the matter with him in detail.He will help you by giving some drugs and may combine cognitive behavior therapy with it.
please do continue the drugs and the therapy he will provide.
Dr Sourav Ganguly