@Katy373 It's really important to be aware that discounts are cumulative, not exclusive. If there is already a 20% new listing discount on your listing, if you added a weekly discount of 10%, the guest will be given 30% off.
Don't think you have to offer discounts to attract business, and do not agree to discount because a guest requests that. Those who ask for discounts are usually red flags.
You should not take longer term bookings, anyway, at this point- you want short stays while you get familiar with the platform and vetting prospective guests and to try to build up reviews. Maybe set a 1-2 week maximum stay.
And pay zero attention to Airbnb's price tips. They are absurdly low. Price according to similar listings in your area.