This growth ETF can take your investment portfolio to new heights.Investing in exchange-traded funds (ETFs) can help generate life-changing wealth, whether you're saving for retirement or simply aiming to build a robust financial cushion.Growth ETFs, specifically, are designed to earn above-average returns over time, and earning even slightly higher returns could boost your total savings by hundreds of thousands of dollars.While there are countless growth ETFs to choose from, there's one I'm planning to hol ...