is this okay?
Yes, helping others is help ourselves. When I help others, I can feel a sense of achievement. If I hear a “ thank you” from others, it will make my day.

Question

is this okay>?
Yes, helping others is help ourselves. When I help others, I can feel a sense of achievement. If I hear a “ thank you” from others, it will make my day.

Answer

Almost perfect, Lisa.  Change "help ourselves" to "helping ourselves" in the first sentence; everything else is great.