You can set a buy limit at the price above the MA, but there's no guarantee what happens to price after you enter the trade. That's why we use stop loss orders.
Set a conditional order to also execute a stop several ticks below the MA, or do it manually immediately after you're alerted of an entry. Your risk is small, no amount of worry will change the outcome, and the market will tell you whether you're right or wrong.
For each setup you may have, each would have specific rules both for stops, exit and entry. This is your Trade Plan.
Combine your setup with pattern setups and you have the basis for a good trading system. Others that have done excellent studies on the use of this tool are E. Hadady, Larry Williams, and Toby Crabel.
If you want to email me, I can send you five diagrams of entry methods that you could combine with your setup. They are:
• Four weeks high or low (Donchain or Turtle Breakout)
• Trend line or Moving Average breakout
• Tight range of closes
• Two prior closes
• Breakout from support and resistance, Pivot point, High and Lows, etc.
Trade moving markets and avoid dull sideways markets (W.D. Gann). This cannot be emphasized enough. A market unable to make a new high for 10 bars raises a red flag.
To identify a strong Resistance zone, look to what stopped a powerful thrust. Likewise, an anemic rally into resistance has only identified a weak resistance zone. A weak resistance zone will more than likely be broken the next time it is tested. The other thing that identifies strong support and resistance is the number of times that zone has been tested.