Create High Win Rate MQL5 Expert Advisor for Forex Trading

Create an advanced MetaTrader 5 Expert Advisor (MQL5) with a target win rate of 89% or higher. The EA should implement the following strategies and concepts:
– Smart Money Concepts (SMC)
– Price Action
– Spha Strength Strategy
– Order Blocks
– Fair Value Gaps
– Break of Structure
– Session filtering
– Adaptive risk management
– Continuous trade cycling (close and reopen logic)
The EA must be modular, well-commented, and cleanly coded in MQL5, designed for future manual extensions.
## Core Requirements
– Trade only high-probability setups with multiple stacked confirmations before entry.
– Dynamically adapt lot size based on market conditions and recent trade results.
– Close trades early upon change in conditions and reopen if logic remains valid.
– Strictly limit overtrading, enforce daily trade loss limits, and protect against high drawdowns.
– The EA must only trade the following symbols:
– XAUUSD
– US30
– BTCUSD
– USDJPY
– GBPUSD
– It must not trade any others.
## Strategy Components
1. Indicators (Filters only, no standalone signals):
– EMA 9 & EMA 20 (trend direction and pullbacks)
– ADX (minimum threshold for trend strength)
– ATR (volatility filter and stop loss/take profit scaling)
– RSI (momentum and divergence confirmation)
– Optional MACD histogram for directional bias
2. Smart Money Concepts Primary Logic:
– Break of Structure (BoS): Require candle close beyond structural levels to filter minor noise.
– Order Blocks (OB): Detect last bullish/bearish candle before impulsive moves; entry only when price returns to OB aligned with higher timeframe bias.
– Fair Value Gaps (FVG): Identify 3-candle imbalance zones; entries allowed only on price retracement into these zones; visually draw FVG boxes on chart.
3. Price Action Rules:
– Trade only on strong impulsive candles with a minimum candle body-to-wick ratio.
– Avoid entries during choppy or low-volume periods.
– Prefer rejection candles at OB/FVG zones.
4. Spha Strength Strategy:
– Implement a scoring system (0.0 to 1.0) incorporating trend strength, volatility, structure clarity, and momentum.
– Only trade setups with strength score ≥ 0.89 for enhanced win probability.
## Session & Trading Time Filters
– Allow trades exclusively during:
– London
– New York
– London-New York overlap sessions
– Block trades during Asian sessions (except BTCUSD), low volatility times, and spread spikes.
## Order Lock & Overtrading Protection
– Limit to one open trade per symbol.
– Implement cooldown periods between trades per symbol.
– Lock trading after reaching max daily loss threshold; unlock at the start of the next trading day.
## Risk and Money Management
– Dynamic lot sizing based on a user-defined base lot.
– Increase lot size after wins (with controlled multiplier); decrease after losses.
– Scale lot size factoring ATR, volatility, and Spha Strength score.
– Enforce configurable max risk per trade (default 1-2%).
– Enforce hard limits on max trades per day and max daily drawdown with shutdown.
## Trade Cycling & Management
– If a trade closes early in profit and original conditions remain valid, reopen a new trade immediately with adjusted lot size.
– Close trades early if conditions weaken.
– Do not perform revenge trading.
## Code Structure (Approx. 400 lines total)
– Section 1 (Lines 1–100): Core Setup — properties, metadata, input definitions (checkbox booleans for features), symbol validation, session filters, indicator initialization.
– Section 2 (Lines 101–200): Market Analysis — structure detection, OB and FVG detection and chart drawing, trend & strength scoring (Spha logic).
– Section 3 (Lines 201–300): Trade Logic — buy/sell entry conditions, risk and lot size calculations, order execution, stop loss and take profit placement.
– Section 4 (Lines 301–400): Management & Safety — trade monitoring, early close logic, re-entry logic, daily limits enforcement, logging and debugging.
## Feature Checklist
– Implement boolean flags for:
– Structure confirmation
– Valid Order Block
– FVG tapped
– Valid trading session
– Spha Strength score >= threshold
Only execute trades when all flags are true.
## Constraints
– No repainting or future candle access.
– Do not include unrealistic win-rate claims in comments.
– Must compile without errors on the MQL5 platform.
– Fully commented for manual expansion.
## Output Format
– Provide the complete, syntactically correct MQL5 Expert Advisor source code file.
– Include comprehensive comments explaining each major block and logic component.
– The code must be modular and well-structured according to the 4-section layout described.
Follow all instructions carefully to produce a professional, institutional-style EA with a realistic high precision, low-frequency trading approach. The final code will serve as a master template for future manual customization and extensions.