You can't pour from an empty cup, right? How could you help someone if you're not helping yourself first?
How could your phone fulfil its functions if you don't recharge its battery?
It's ok to say no to meeting up with friends if you don't feel like it, it doesn't mean you don't want to see them or don't love them, it just means you need to recharge your own battery... and if they're true friends, they'll understand...
It's ok to text someone and tell them you will call them asap but you need time off right now.
It's ok to take care of your emotional and mental health.
No one is going to do it for you because no one can do it for you.
So, my challenge to you right now is to do something for yourself that you have wanted to do for a while but you haven't yet because you didn't want to seem "selfish".
It can be anything: take a long bath with oils and crystals, book a healing session, read a book, learn a new skill, do something creative... it could be anything as long as it brings you joy and make you spend quality time with yourself :)
Go ahead and do that, hug yourself from me and let me know in the comments how you treated yourself.