We have been living with the Higgs boson for almost 9 years. Since its discovery in 2012, the Higgs boson remains to date the most studied particle at the LHC, and the precise determination of its properties represents the best opportunity to isolate signs of new physics processes that might not be accessible with direct searches. In this seminar I will review the most recent measurements of the Higgs boson properties by the ATLAS detector at the LHC, and discuss their interpretations to constrain phenomena beyond the Standard Model, as well as how these measurements will evolve at the LHC Run 3 and High Luminosity run.