Do you have an emergency fund? No? make that your investment!
Do you have 3-6 times your monthly expenses set aside? No? make that your investment!
Still money left? invest in MSCI World oder S&P 500 ETFs and let it sit for a decade or two ... that should net you your 10x growth
Edit: removed the MSCI EM ETF recommendation ... S&P 500 performs better.