The speaker treats self-discovery as something you do through ordinary, everyday choices rather than big revelations. Planting flowers where they can be seen from the bedroom, blasting music at strange hours, and putting on makeup only to wipe it off again are all small, slightly messy experiments. None of them is meant to prove anything. They're ways of trying things out to see what fits.
The tone is relaxed, playful and a little defiant. The opening line, which says it's never too early to start, sounds encouraging, almost like advice to a younger person or to the speaker herself. The final line, "I'm doing everything and anything I want," pulls the whole poem together as a declaration of freedom. There's no worry here about getting it right, and the mismatched hours and the makeup applied then removed suggest that being unsure is part of the process. The mood is light, independent and quietly hopeful.