@ OP:
Is god nice? What is your understanding of nice?
Maybe you are confusing "nice" with "wimpy"?
God has given you the greatest gift he can bestow. Freedom.
He allows you your individual freedom of thought, will, and action.
He does not violate your freedom. Let me explain:
If you believe in god as the all powerful father, does it not stand to reason that he could make you do anything he wanted? Literally force you to do anything he desired? He can bend your mind and body to do whatever he wishes.
But he does not. He has granted you freedom of will. And along with doing so, he is respecting you.
What does that mean? Think of it this way- when someone forces you to do something, how much impact does that have on your growth and understanding? If you have not consciously made the choice to do it yourself, your personal being has been weakened and violated. However, if you come about the decision yourself- you are strengthened. You grow as a person.
That is the essence of life and freedom. It is important that we find our way through our own choices. It's why sometimes we have to learn things the hard way. Sometimes we are unable to learn from others. It doesn't have the same impact as learning ourselves. That you make the choice yourself and are not coerced is very important to your personal growth and health.
God as a being does not set down rules to make your life difficult. He does not ask that you obey him and worship him for self aggrandizement. These rules are part of HIS kingdom and HIS boundaries. He is letting you know what he considers acceptable and what he will not accept. His rules are intended for your benefit. Living with/in sin destroys your soul. It is evil, he will not accept it in his kingdom and does not desire it for you.
But they are HIS boundaries. Just as he respects our boundaries of personal self, so must we respect his boundaries. He entirely allows US to decide our path. He respects our boundaries of personal self.
That should not be misinterpreted as acceptance of deleterious behaviors.
It sounds as if you want to have your freedom, but are angry with god when he allots consequences to that freedom and enforces such. If he did not, that wouldn't be "nice", that would be "wimpy".
You seem to be struggling with your relationship to god. I pray he can work in your heart. At least if you are questioning him, it means that you are thinking about your eternal soul. It's a start, so that's a good thing.