Great online tool for: stock targets and stop limit prices, target potential (of reaching a stock's target), trade quality with profit/loss ratios, real stock support and resistance levels, custom stock sectors, and much more! Not investment advice.
I'm trying to be a swing trader. I've lost money in the past by holding on to losers. Lately I always cut losses below 5% and aim for 10%+ gains. I sometimes miss out on winners, but I'm in the black now and feel I'm making good progress.