for short trading better use future… you dont need to borrow amount you dont have for SL n TP…

hello Binancers!

I'm new to this trading stuff. So didn't set a stop loss and take profit before the trade. I thought can manually set up a stop loss and take profit after. but if you look at the screenshot, I only could make a stop loss or take profit and not both since it says don't have enough SUI. what am doing wrong here. why can't I set it up? what am I missing here? cheers for any input!