Growing up, you learn that when somebody asks something of you politely say "yes." However, sometimes you have to say no, and deciding when to say yes or no can be hard.
I struggle immensely with saying no. Not so much because I don't want to do something, but rather I don't want to let someone down. One of my biggest fears is letting people down, and even though I'm still struggling with this right now, I'm hoping to take his will help take my own advice and know that it is ok to say no.
You can't please everybody
No matter how hard you try, there is always going to be one person who doesn't agree or is unhappy at even the slightest discrepancy. But you know what? That's OK. As long as you are happy with what you've done, that's all that matters.
Saying "no" won't ruin the other person
The biggest struggle I face is the fear of letting someone down. So I think that if I agree to all someone says, I might make life just a tiny bit easier for them. However, this is not true and the person will eventually get over it and will understand you can't do everything.
You can't control their reactions
Saying no won't create some huge catastrophe where that person won't want to be around you anymore. Maybe they want you to say no. Saying yes won't control the other person.
It's ok to think of yourself
Worrying that saying no makes you selfish is FALSE. I get wanting to put the hardships on yourself rather than burden someone else, but putting forward yourself is just as important.
The world doesn't change
Whether you say yes or no, the world is going to keep spinning and people are going to move on with their lives. If you want to say no, say no, the world will continue to carry on.
Be happy
At the end of the day, the only thing that matters is the happiness you gain from life. Saying no is hard because you want to make sure everyone else is happy. But don't forget, you're happiness is important too.