In an upbeat speech, Morgan rehearsed many of the messages that she and her party will deploy in the 18 months between now and the 2026 Senedd election.
Welsh Labour, she said, had long been the "beating heart of Welsh politics".
"Our story, the story we write every day, is one of hope, resilience and a deep belief that together we can build a better Wales for all," she said.
"From my early days surrounded by the strength and solidarity of my community", growing up in Ely, Cardiff, "to my service in the European Parliament, the UK Parliament, and now the Senedd as your first minister, I have remained steadfast in my commitment to the values that define us as Welsh Labour".
"Today I stand before you not just as the leader, but as a fellow member of our movement ready to confront the challenges ahead with experience and determination."
A £13m grant fund to help redundant Port Talbot steel workers and their families was announced by Welsh Secretary Jo Stevens, aimed at supporting people to set up their own businesses and expand and diversify local firms and those in the Tata supply chain.
The money is part of £80m from the UK government to help 2,800 Tata workers losing their jobs and help the local economy cope with the impact.
Tata has closed its two coal-fired blast furnaces and is to replace them with an electric furnace that will need fewer workers.
Stevens said: "We said we would back workers and businesses affected by the transition at Port Talbot and we are doing so with more than £26m announced since July."