The Sinn Féin leader has called for urgent Government action to make life more affordable for people.
In a keynote address to her party's Ard Fheis Mary Lou McDonald said an affordable life must be the bedrock of the country’s future.
The party is seeking a substantial cut to excise including the complete removal of carbon tax on home heating oil and green diesel.
It wants electricity credits worth €400 along with a €500 cost of disability payment to be delivered in an emergency mini-budget.
There was also a call for greater support for those in receipt of social welfare, pensions, child benefit, and fuel allowance.
And Sinn Féin wants a permanent cut to the USC which would put €500 back in every worker's pocket.
Ms McDonald told party delegates that as the 30th anniversary of the Good Friday Agreement approaches, referendums on Irish unity can happen by 2030.
"Sinn Féin will bring forward legislation before the summer compelling the Irish government to publish a green paper - a detailed discussion on the process of Irish Unity.
"And to convene a series of all-Ireland Citizens Assemblies to advance the discussion, the sharing of ideas, and planning for constitutional change," she said.
The Sinn Féin Leader accused Fianna Fáil and Fine Gael of Fianna Fáil of being hellbent on dismantling Ireland’s neutrality.
"We stand by Connolly. We serve neither King nor Kaiser but Ireland.
"So, Micheál Martin and Simon Harris, I challenge you to put your plan to scrap the Triple Lock to the people.
"You'll get your answer - hands off Ireland’s neutrality."
McDonald says referendums on Irish unity can happen by 2030
McDonald insists she will lead Sinn Féin after next general election
Ms McDonald earlier said there were no plans for change at the top of Sinn Féin and dismissed reports of internal dissatisfaction with her leadership.
"There isn't a story there", she told reporters. "I'm the leader of the party and we're in a very good place.
She added that the party was united, strong and determined to "motor on."
Ms McDonald said that it was the party members who elect the leadership at each Ard Fheis and that both she and Michelle O’Neill will be re-elected today.
It is her intention to lead her party into a government that does not include either Fianna Fáil and Fine Gael.
McDonald says Fianna Fáil and Fine Gael 'hellbent' on dismantling Irish neutrality
She said that the Government was under pressure and was now a minster and a TD down.
Last night, the party members voted to support a ban on fox hunting against the wishes of senior Sinn Féin figures. There are concerns that this policy could adversely affect the party’s rural vote.
The vote had a relatively tight margin. This came after a lengthy and sometimes heated debate, which at one stage was stalled as Belfast's International Convention and Exhibition Centre had to be evacuated due to an alarm.
Read more: Watch: Mary Lou McDonald's keynote speech at Sinn Féin Ard Fheis
Sinn Féin Monaghan TDs Matt Carthy and Cathy Bennett spoke against the motion with Dublin MEP Lynn Boylan and Kildare North Réada Cronin among those to favour a ban.
However, Ms McDonald dismissed any suggestions that the leadership was losing its grip on the party.
She said it showed how robust Sinn Féin was, and it made it clear that the members are the ones who set policy.
"I know that makes us different from other parties," she said.
'We are an incredibly strong political party' - McDonald
Last night, party Finance Spokesperson Pearse Doherty called for the immediate introduction of a mini-budget, saying the Government needed to act to help households.
Ms McDonald and First Minister Michelle O'Neill also met the family of murdered Derry GAA official Sean Brown at the Ard Fheis, saying after they "will continue to press the British Prime Minister to establish a public inquiry into Sean Brown's collusive and devastating murder without delay".
Delegates will also discuss proposals on building stronger public services and how to prepare for Irish Unity.
Sinn Féin headed into this Ard Fheis as Ireland's most popular party in opinion polls but still some way off its peak polling figure of 2022.
A recent poll also put the party at its lowest level of support in the North in five years - ahead of Stormont Assembly elections next year.
Michelle O'Neill told the delegates that progress in the Executive has been slower than she would like, and she said she shares people’s frustration.
