Disclaimer: This is not advice, this is just information that can be consumed and used however you may wish - but it is not advice or guidance.
I am going to be slightly less specific on this one and say a few general statements:
Try to sell/participate in every bounce (sell 30% of whatever you bought below that selling point/bounce)
If you plan on holding them then anywhere you sell for profit is good
Also, I wanted to reference the "Last Cracked Base" principle which is good to know about when trading below such a massive base especially in a bear market. The post describes it well but I will give it a shot. Basically, if the crack exceeds the average typical crack, then you want to try and sell on the next bounce close to where the closest base was cracked. I am going to steal a screenshot from the post (I will give credit though):
As you can see, the price did not return back to the base and kept down, but he was able to sell/predict that the first bounce would go up to the lowest most recent base-crack. This is a good way to get out of a trade that is "getting away from you"
The post describing this principle is here: https://quickfingers.io/threads/the-last-cracked-base-principle.246/