My costly lesson in not respecting timeframes on CFDs

Biggest mistake I ever made with CFDs was failing to respect the inherent volatility and leverage across different timeframes. I'd typically scalp $DAX and $SPX on 1-minute and 5-minute charts, quick in-and-outs, tight stops. It worked well enough for a while. Then I saw a bigger setup on a daily chart for $EURUSD, felt confident, and sized up as if it were another scalp, just with a wider stop. The market decided to consolidate sideways for two weeks, eating into my margin with overnight financing costs that, while small per day, compounded significantly. By the time it finally moved in my favor, a good chunk of the potential profit was gone just from carrying the position. It wasn't about being wrong on direction; it was about misjudging the cost of being right slowly. Should've sized smaller, or traded a lower-leverage product for that longer-term view. Learned to calculate those holding costs into my initial risk assessment much more carefully now, especially with CFDs.