I'm going to explain it a bit to you. $100 to a person who doesn't know how to make money online is the same if it was $1000. Money only has investment value if you know what you're doing. You clearly don't, so these $100 will certainly turn into $0. The only value you can get from some experience from your failures. But I'll give you a better option. Keep the $100 for now and start absorbing information from this forum. Find an interest and collect all the information. Once you are confident that there's a small chance you can succeed, do it with all your might.