The price is back at your entry price, so why are you still slightly down after closing the position?
One detail: funding fees paid while holding a position also count as costs. The longer you hold, the more you need to make up; funding fees received can offset some of those costs.
Averaging down only makes the average price look better—it doesn’t reduce the risk of the entire position. The larger the position, the greater the impact of the same price movement.
Understanding this is worth more than memorizing a pile of jargon. Leverage multiplies gains and losses, not the accuracy of your judgment. The higher the leverage, the less room you have for mistakes.
Quick look: $BTC current price 74821.77 (24h -1.45%).