Are you feeling responsible for you mom's potential reaction if you do decide to end your life..? Are you two living together..?
Suicidal thoughts are never easy to contemplate. See this as your first step into realizing that life might not be exactly what it was cut out to be. After this, you may return to "normal" and have a good life, or you may stay here and gather more wisdom from the members here, who may be in a similar situation to yours.
I wish that you, at least, will have a valuable stay here