When I grew up, you never heard this phrase, self care. Everyone was so concerned about behaving and speaking in a way that was considerate of others in order to avoid the shaming associated with being branded as selfish. Looking back, we all needed more encouragement towards self and less shaming towards pleasing. Seems to apply to every generation of women. So bravo for self care!!
Self care is about taking the time and directing energy towards yourself. Oh, and sometimes it needs to include creating space for yourself. It's the same as when you are in the airplane and told to place the oxygen mask over your face first and then help others with their masks. If you don't do what you need to do to stay vital and happy, you stop loving life and yourself.
First step is to identify what makes you feel good. Yes, life is supposed to be about feeling good. If you want to focus on helping others that's fantastic and even more fantastic if you bring positive energy to your efforts, which naturally happens when you feel good!