People Cannot Be Truly Happy If They Are Not Of True Service To Others?

Abraham Maslow was a psychologist who delved deeply into the subject of fundamental needs versus more advanced needs. He called them deficiency needs and being needs.
For Maslow, they come in a hierarchy, and first we must meet our deficiency needs, which include having enough food to eat, security from attacks, a roof over our heads, sexual satisfaction. Only after these have been met, he argues, can we focus on our being needs, such as intellectual stimulation, creativity, being of service to humanity.
It goes without saying that if we are homeless, starving, living in a dangerous place where survival is tenuous, that we can’t focus very well on being needs. Writing poetry for the uplifting of mankind is tough to do when the fear of being hit by bombs is palpable.
You say you have “always struggled in life.” I assume you’re talking about an economic struggle. Of course you can help people and be happy on very limited resources. Look at Mother Teresa, who took vows of poverty.
The happiest time of my life was when I rode a unicycle across the country to raise funds and awareness for the homeless. I was using talents I had developed–fitness, writing, speaking–to help others. Most of the time, I was one small step from being without a dime in my pocket. But I learned faith in God and myself from such experiences. Many times, I actually thought to myself that I must be the happiest man in the country.
Many great thinkers and spiritual leaders agree that the basis of a good life is service to others. Jesus said that the greatest people are the ones who serve others the most. The Dalai Lama, in The Art of Happiness, says this is the most important factor in a happy life.
Edgar Cayce said that we shouldn’t just be good, but be good for something. Focus on developing a talent that truly serves others, he advises. When we enjoy what we do, and it helps others in the process, we are well on the road to a happy life.
But I am in full agreement with you here, that indeed we CAN help others even with few resources. Perhaps the greatest service we can render to others is to simply listen to them nonjudgmentally, and that costs us nothing but a little time.
Socrates said that the unexamined life is not worth living, and you have not lost sight of that ancient pearl of wisdom. I wish you a happy life in spite of inevitable tragedy which touches us all. There can be no day without night, no happiness without sadness. Philosophical understanding that tragedies often lead directly to our greatest achievements and happiness help us keep the eternal flame of happiness burning in our souls, no mattter tragedies befall us.

Happiness is an attitude. Once a person’s fundamental needs are met, then you can look after others if you so desire. It makes the heart feel good and the soul sings, but this doesn’t necessarily move some. They are just happy to have achieved.
“Man can achieve whatever his mind can conceive and his heart will allow.” – Sophist

Im not sure I got you, do you mean people who help others and stem their happiness from making others happy are truly happy people, YES, I believe so, but still people who do not meet their fundamental needs are also happy, needs are meeting needs and desires is NOT always the way to happiness

I would say that a Slave might disagree with that.