Trading Strategies and Indicators

Hi my name is Rob W - I’m new to this forum I have been trading (active and demo accounts using MT4 indicators and platform) for a number of years. My results have been somewhat haphazard; some good and others not so. I have been using money management rules; trying to keep my lot size in proportion to my capital and risk rules. Often I set my Stop Loss too tight, get taken out of the trade and it heads back in the direction I started with; very frustrating.
I would appreciate discussions on various indicators and strategies with a high percentage win rate.

Higher win rate strategies seem to group under the basic principle of trend-following. There is an amazing variety of entry signals for these, to the point where you have to wonder of a random entry on a trend would be just as effective.

As for indicators, my feelings are that each indicator must answer a question that is firstly essential to the strategy, and secondly which cannot be answered by the price chart.

I don’t bother persevering with strategies that have low win rates, too personally damaging, though they can work financially. The actual win rate though for a profitable outcome does not need to be as dramatically high as some sources suggest - a win rate of only 55% will work fine with a r:r which is also unexciting at 1:1.5.

How do you calculate max DD for strategies?