Polymarket: My lesson in not respecting resolution times on binary events

Been trading on Polymarket for a while now, and one of the sharper lessons I've learned, particularly with events that have a defined resolution date, is not to discount the effect of that countdown. I got burned hard on a $BTC price prediction market last month. The market was for 'BTC to close above $70,000 on March 31st'. I'd built up a solid position on 'Yes' as $BTC was grinding up nicely towards the target in mid-March, feeling pretty confident. What I failed to fully appreciate was how much time matters on these binary outcome events, especially when the price action stalls. As we got closer to the 31st, $BTC started to consolidate just under $70k. Instead of trimming my position, or even just holding, I kept adding, convinced it was just a matter of time before the final push. The issue wasn't my price target conviction, but my failure to properly account for the decreasing time to resolution against the remaining price distance. Each day that passed without a decisive move above $70k, the 'Yes' side became exponentially riskier, but I only saw the potential upside. I eventually got chopped up as the clock ran out, and $BTC closed just shy. It's a classic example of not letting a good entry cloud your judgment on risk management as the parameters change.