Your act profile is what agencies and venues see, and it's what gets you offered work. It's worth twenty minutes.
The setup wizard walks you through it a card at a time, and each step saves as you go: you can stop and come back without losing anything.
What matters most, roughly in order: a clear act name, the right act type and genres, a good photo, your base county and nearest town, and how far you'll travel. Then your fee, a short bio, any technical requirements, and notable past gigs.
Be accurate about travel distance and fee. Agencies filter on both, and being vague mostly means being left out of searches rather than getting more offers.
You can edit any of it later from your profile.