Why was Roosevelt’s fist 100 days a sucess

Since then, the first 100 days of a presidential term has taken on symbolic significance, and the period is considered a benchmark to measure the early success of a president. He also instituted major regulatory reforms related to finance, communications, and labor, and presided over the end of Prohibition. He harnessed radio to speak directly to the American people, giving 30 "fireside chat" radio addresses during his presidency and becoming the first American president to be televised.

it wanted to boycott trade with enemy nations.

( sorry my answer is short they wont let me do just war so ignore this) xd