I wanted to be nice people to my acquaintances on the past. = I used to be nice to my acquiantances in the past.
I has lots = had a sense of responsibility that lead = leads me to resolve other's problems.
So, I used my time and energy for other people than me.
It gave me a feeling of exhaustion, and then I had no resource = resources to do anything for me.
It looked bad totally = totally looked bad, so I thought I had to live for me.

Now I strive to behave for my happiness in terms of my relationships with others.
If anyone ask = asks me requests, I don't embrace all requests.
Nevertheless the disappointment of other, I wish to guide myself. = Although I might disappoint others, I will remind myself that it's important to prioritize my own needs.
And If = On the one hand, if I am worried about my refusal, I try to cross that bridge when I come to it.
However, it's so difficult for me because of my personality to has worries = personality.
I try to avoid the rat race that must give me lots of discomfort.

Thank you for reading. Sorry about lateness = for being late!