I totally get that! It is so hard to be always focused on everybody else, tryna make everybody else's lives better yeah even strangers. It's so much pressure. Meditating sounds like a good idea! I have found some like quotes that sometimes help me (I'm a huge fan of quotes, I find other people are better at wording what I think and feel, and it's nice knowing others feel the same way and I'm not alone) I wonder if they'll help you? No harm in sharing them anyway.
'When you say "yes" to others, make sure you aren't saying "no" to yourself'
'You can't go your whole life trying to please everyone else. You can't go through life worried about what everyone else will think. Whether it's your hair, clothes, what you have to say, how you feel, what you believe, and what you have. You can't let the judgement of others stop you from being you. Because if you do, you're no longer you. You're someone everyone else wants you to be'
Idk if you relate to these but I figure might as well write em just in case!
Just know you aren't alone, also sorry for all the writing!!