What’s the best way to identify highs and lows in forex?

Anyone know a good method of identifying highs & lows in forex? I make losses in forex because after I enter a buy/sell trade, the price suddenly starts moving in the opposite direction. Its almost as if I am always late to the party and my timing is so off

By switching to a higher timeframe. For example on the 1-month time frame (see image), each candle represents one month so you can easily see the highest and lowest price reached for each year.