Great Supply Levels to sell the SPX Index

As we can see on the daily chart, the SPX500 has a great recovery after the massive drop a few weeks ago.
The price now getting close to supply - 1 that is a great level to sell SPX500.
If the price will breakout this supply toward up I'll close this position and I'll open a new sell position if the price reach to supply -2.
Both options are relevant for swing or long term traders.