Learn to Say NO.

 It's been a strain for me to say "No," because I've always believed that if I say No, they'll think of me as someone who doesn't do favors. Even if I don't want to do it or find it difficult to complete the request, I always say "Yes, I'll do it" and then regret it afterward. Especially if the person who requested it was someone I knew well, such as a friend or a relative.

But as I've gotten older, I've realized that saying No is important because it's your way of putting yourself first and taking into account how you feel. And when I think back on those times when I struggled to say "no," I feel bad about it. Because I didn't stand up for myself, that I should be the one prioritizing myself above all else.

Don't get me wrong: helping others and doing favors for them isn't a bad thing, especially if you have the means and ability to do so. Doing things for others is a good thing, but we must first check ourselves to see if we are comfortable doing so. Is it difficult for me to do?

You must learn to say no. Define your boundaries. Make yourself a priority. Don't beat yourself up.