One trend tool, one momentum tool, one volatility tool. Everything beyond that is a refinement, and almost nothing beyond that is urgent.
50 EMA
Trend · start here
A single moving average answers the only question that matters early on: is this market going up or down right now? Price above a rising 50 EMA means you look for buys. Below a falling one, you look for sells. That one rule removes most beginner trades.
200 EMA
Bigger picture · one line, high value
The longer-term trend. When the 50 and 200 point the same way, setups work far more often. When they disagree, the market is undecided and there is nothing wrong with sitting out.
RSI (14)
Momentum · one oscillator, no more
Shows whether a move is running out of steam. The mistake to avoid immediately: 'overbought' does not mean sell. Strong trends stay overbought for weeks. Use it for divergence at a level, not as a signal on its own.
ATR (14)
Volatility · this is your stop loss
Tells you how far this market normally moves. It is the least exciting indicator on the list and by far the most useful, because it turns 'where do I put my stop?' into arithmetic instead of a guess.
Support and resistance lines
Structure · not an indicator at all
Horizontal lines at obvious prior highs and lows. Free, visible on every chart, and responsible for more good entries than any script. Draw fewer, heavier lines rather than a dozen faint ones.
Volume
Participation · confirmation only
Whether anyone actually turned up for the move. A breakout on much higher volume than normal is meaningfully different from a quiet one, particularly on stocks.