I totally get what you mean. Your concerns are valid. Being too self centered is a real problem, and it hurts our already fragile social relationships. I agree with what the others have said here, and I would add that I think self-love is a virtue in the middle of the spectrum between no confidence and too much confidence. Self care would be an Aristotelian virtue, a golden mean between two extremes.
Keeping oneself healthy and happy also allows us to tend to the needs and desires of others without overextending. It would be a disservice to oneself and others to fall into disrepair.
I love you. I hope you get everything you need.
Edit: I’m sorry. Take care.