ETHUSD - When to Start Selling? (Monthly 3MA, RSI & MACD)

This is not financial advice blah blah blah and happy new year to all.

Observations from the Monthly ETHUSD Chart

+ The MACD histogram has been stuttering since the first time ETH hit around $2,500; the main drive was from $70~$2,500 it would seem.
+ The MACD 12MA (blue) has already flattened so maybe the tide is turning.
+ The RSI-based MA has flattened suggesting upward momentum has slowed down.
+ The RSI has been making lower highs and lower lows since around $2,500 suggesting slowing momentum.
+ If history is anything to go by, starting to sell when the monthly RSI makes a higher low after the peak seems a good idea.
+ The 3MA (applied due to quarterly logic?) seems to also show long term local or whole market cycle tops.

Any comments or thoughts, please share below in the comments.

Cheers.