will the government help me cut down a tree

Sometimes. If the tree is on public property and is a potential cause of a safety hazard, the city might come to cut it. If the tree is on private property but causes a safety hazard for city property, the city might come to cut it.
If it is your tree and causes only you a problem the city might not come to cut it down.

You do not give details, so observations about what might be or might not be or just speculation.

At any rate, good luck to you.

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