My advice is never to use other people's money for trading, especially if you promise profit sharing. Because sometimes trading doesn't work
smoothly according to plan, moreover crypto trading has a very high risk. If you are proficient in crypto trading, use your own capital to trading.
More comfortable and safe trading with own capital. Although the capital belongs to a close friend or family, you better not use it,just teach them
your trading skills. So let your friend trade alone, that's the decision you have to make in my opinion.