For free and user-friendly backtesting tools, consider using platforms like TradingView or NinjaTrader. TradingView offers a robust backtesting environment and has a community sharing scripts that can help you get started without deep programming knowledge. Make sure to test your strategies over different timeframes and market conditions to cover various scenarios effectively. It's crucial to keep your strategy adaptive and review backtesting results critically, as past performance isn't always indicative of future results.