I have been putting part of my paycheck into a high yield savings account, but haven’t bothered with investing it in a responsible manner partially due a fear of losing the money due to bad investments. I’m finally realizing how much potential money I’ve lost by letting my money stagnate. Please advise me on how to responsibly invest my money, thanks!
First you need to educate yourself on different investment strategies, but a broad MSCI World can easily give you the peace of mind and diversification.
Check https://www.justetf.com/en/academy/etf-for-beginners.html which is providing very good starting point. There are more articles there that will describe the basics.
The best advice is not to invest in single stocks and always keep your investment portfolio diversified.