Do not inflate your lifestyle.
As someone who won IPO lottery twice netting 8 figures after tax, that would be the advice.
Learn investment basics, invest your lump sum into VOO, VTI, and the likes, and enjoy luxury of knowing you don't have to work when you retire.
You might also want to watch videos of Graham Stephan on youtube - all things considered, he's very clear about how frugal lifestyle benefits you long-term.