Are you referring with the trading plan or just the trading indicators?
It's clearly stated, it's not directly a trading plan but your trading strategy. And this strategy could be through the use of indicator or other means whatsoever that gives you a clue on the path the market will follow for a period of time.
TBH, I'm really curious about the way you combine the strategies. Is it really possible to combine trading strategies?
According to my experience, each trading strategy has its own target/goal. So, the way to trade between one strategy and another strategy will be a bit different. I'm not sure if it is really possible to combine them.
How do you use a combination of strategies in trading?
I just know this, never heard this before and I never did this way.
It's simple, strategies are for different purposes, so you might blend them together to form a complete pathfinder for you that would be stronger than if you use just one. You might use two trend indicators, one overbought/oversold indicator and one breakout strategy to form your trading strategy. And everything must agree on a safe direction before taking the risk on that direction.
It is dangerous to rely entirely on one method. Markets are dynamic and ever-changing, and a strategy that works well in one market scenario may not work as well in another. Traders might possibly profit from diversification and lessen their reliance on any particular technique by mixing various tactics. Furthermore, as you indicated in your experience, combining methods might aid in better filtering trade signals. When different techniques corroborate the same signal, it can boost the trader's confidence and raise the likelihood of success.
The problem with this is that now you require a trader to have several successful strategies they can use perfectly, a very difficult thing as most traders do not even have a single strategy like that, however even if they had them those which have traded the markets before know that different strategies can give opposite signals, so what would you do if one strategy tells you to buy while the other strategy tells you to sell? This will only confuse traders even further and reduce their effectiveness.
To me, this is about your choice, traders use one or more strategies without issues. Just ensure that the one you are using is very effective in its function. All you need to do in addition is to manage them right and everything would be fine. Also about the confusion, strategies vary, some could lead and some could lag, but with your training, you know the perform ones for the job and you should never open a trade unless all the strategies agree on one decision. By this, it would have filtered off noises and you would be just fine.