Can I just drown myself?
Surely you jest! Why do you think about drowning yourself?
I'm tired of listening to the same bad news everyday
It sounds like you are having some very deep thoughts. It's wrong to think about harming yourself. It's best you get some professional help.
I just want the TV news to give us some good news for a change.
I hope you can just turn the TV off if there is too much bad news on. That way you won't be so depressed. Either that or you can go get some therapy.