Sui/c/ida/l thoughts

Lately I'm having so much suicidal thoughts... Like I really want to disappear from everyone, including my parents.. I'm frustrated with my work life, my parents constantly pressuring me to get married, giving up on higher studies because of high tuition fees etc etc... all these led me to get frustration I guess...

I'm having these type of thoughts... e.g. Jumping before a running car or train or metro, jumping from high rise building (my work place) etc etc... I was even searching for medicines which will cause cardiac arrest in my sleep.. I think I'm having depression but I really don't want to see any doctors... I wanted to talk about these with my parents but I know they will never pay any attention to it...

So what should I do I'm really thinking about this right now! Do I have any other disease other than depression?? Will seeing a doctor help me out??