Hi Pramudita.
Nice essay, you have made it very well. All the ideas you explain very clearly and you give an example each idea. However, your first body and second body look very different. The first body looks so 'thin' and the second body looks so 'fat'. it is better if you make it balance.
see the comparison.
first body
Finding a great job is one of most people goals. Those who spend[...]
[...]This is because following their passions is more important than just think of salary.
Second body
On the other hand, many motives are believed to be the keys of pleasures. Firstly[...]
[...]For instance, teaching children from poor families will make people obtain happiness.
There is no serious grammatical errors, that means perfect!
But, you have to more focus on give a comma to the sentence like this.
It is caused those are not only always there to support humans needing them but also (PUT COMMA HERE) understand how to make people smile
Good Job.
KEEP SPIRIT!!!