Being selfish isn't always bad, especially when it's a question about saving ourselves.
This is true. Sometimes we tend to put others ahead of us not because we want to, but just because we don't want to be called selfish, which is stupid. Every now and then, one should learn how to care for his or her self first before anyone else. You can be selfless but not always at your own expense.
Yes.
After all, we cant always make others happy, sometimes we gotta think about ours too.