Hello, I have about 3 BTCs that I would like to earn a little bit off of...I tried BTCjam and most lenders didnt pay back, so I made negative there..
I dont know trading so I dont know how that would be... any other ideas?

Everything can be learned mate, just try to have some reading and research some articles that belongs to crypto trading. If you're really interested to earn more money using your 3 bitcoins capital, you need to take some steps to get your desired income from your capital. Not everyone has such a great capital like what you have, don't waste that opportunity to learn some strategy and to earn more money using that capital of yours.