Singulair and conflict

I am 16 years old and I have been taking Singulair for about 2 years. And honestly I didn't start to notice any side effects. Of course that's like someone not knowing how tall they get which is common. Anyways, I've thought about it and I have changed. I'm more impulsive, I can't fall asleep until 12 and I go to bed around 10:30. I also am feeling depressed, very but oddly enough, it only takes effect at home. That's when I let down my guard. But the music I'm listening to has gotten more aggressive, you could say I'm more violent but I haven't gotten in any conflict with anyone. And above all. I am very depressed. When I come home I just fall apart, and only at home. In fact about 3 or 4 weeks ago I think I spent about 20 minutes thinking about my life with great intensity. And for that I time period I cried, I was just through with everything. I was tired of my life and making myself unhappy, even though at the same time I knew that this wasn't me. And only until Thursday my mom told me she found out that Singulair says on the side of the bottle or one of the side effects is "Thoughts of suicide". And I love Singulair, but I think that I should stop taking it. For my own safety as well as my family and friends.