As a leader, you should be strict with yourself in all aspects and you’re supposed to dobe good inat everything.

No matter ifwhether you like or dislike a colleague, you can’t show it.

Instead, you should treat hithem as he or she isif they are perfect.

You would have to do a lot of things you diwouldn’'t like.

For instance, - balance, and coordination.,

E even though these are all useless things.

If someone is not happy with you, no matter ifwhether they are right or not, you should keep a good attitude and not lose your temper.

Compared withto ordinary staff, you need to take heavy responsibilities and have to give a lot.

The difficulties of being a main leader

The word "leader" already suggests that the person is very important.

The difficulties of being a main leader.

As a leader, you should be strict with yourself in all aspects and you’re supposed to do good in everything.

"do good in everything" isn't necessarily wrong, but I'm not entirely sure what you mean.

No matter if you like or dislike a colleague, you can’t let it show it.

If I understand correctly, part of what this sentence means is that if you like a coworker, you shouldn't let them or any other coworkers know. Doesn't that kind of contradict the next sentence, which says " you should treat him as he or she is perfect"?

Instead, you should treat hithem as he or she isif they are perfect.

In your original sentence, you refer to the coworker as "him" the first time, but then as "he or she" the second time. For consistency, I changed it to the gender-neutral "they", but you could also say "treat him as if he is" or "treat her as if she is".

You would do a lot ofThis might mean doing things you didn’on't like.

I'm not entirely sure if my sentence captures what you meant.

F(for instance, balance, and coordination.)

If you have two items being listed, they should be coordinated with "and".

Eeven though these are all useless things.

This is a sentence fragment, because the subordinating conjunction "though" turns the following clause into a subordinate clause, and so the sentence has no main clause.

If someone is not happy with you, no matter if they are right or not, you should keep a good attitude and not lose your temper.

Compared withto ordinary staff, you need to take on heavy responsibilities and have to give a lot.

The things you may want or may not want, you can’t really want and the things you have to give or don’t have to give, you must give away.

I suppose this sentence means that your personal needs and abilities are irrelevant, and that you should do whatever the job requires you to do?

If you are not very interested in being a leader, it would be better to be an ordinary staff member because you can b, as that way you would have more freedom and morea simpler job.

By "more simple" I assume you mean that the job would be easier or less complicated.

Please always remember, it’s not that a leader can do things at his o't just do whatever thery willant, no matter how high a position he or sher has.

The difficulties of being a main leader

The difficulties of being a main leader.

As a leader, you should be strict with yourself in all aspects and you’re supposed to dobe good inat everything.

“Be good at” reflects the amount of skill you have
“Do good/doing good” is generally used to talk about charitable service, for example “The politician likes to do good in the community”

Instead, you should treat hithem as if he or she iswere perfect.

I changed “him” to “them” here because later in the sentence you offer the option that the colleague could be a he or she. The option to be a “she” poses a contradiction to the word “him.”

You could also replace “he or she” with “them” for a more concise sentence.

I changed “is” to “were” because in this sentence you are implying that the colleague is not perfect, but you need to treat them as if they hypothetically were.

You wouldhave to do a lot of things you didn’t slike.

You could also say:
“You may have to do a lot of things you dislike.”

The difference between these sentences is that your sentence assumes that the leader will have to do tasks they dislike, whereas this sentence offers a possibility that they may dislike something, but it is not certain.

For instance, balance, and coordination.

Even though these are allboth useless things.

Since there are only two items in the list, we use “both”

If someone is not happy with you, no matter if they are right or not, you should keep a good attitude and not lose your temper.

Compared withto ordinary staff, you need to take on heavy responsibilities and have to give a lot.

The things you may want or may not want, you can’t really want and the things you have to give or don’t have to givemay want to keep, you must give away.

If you are not very interested in being a leader, it would be better to be an ordinary staff member because you can bhave more freedom and morea simpler job.

Please always remember, it’s not that a leader can’t always do things at his or her will, no matter how high a position he or thery hasve.

“They have” would sound more natural here.