Best method to properly save your gains and accumulate more crypto?

So, I am kind of tired so I’m struggling to wrap my head around the math I attempted to do using my actual holdings.

I want to know what the best way to take your profits is while still holding down your coins.

For example, let’s say you bought $2,000 worth of a 1$ coin. So you now have 2,000 coins. The price goes up to $1.20. You decide to sell the $200 worth of your coin that your are now in profit because the trend looks like it will go back down to your buy in price. You then buy back in with your $200 profit at $1. This should net roughly an additional 33.5 coins based on my math.

Does it make any sense mathematically to sell your whole bag at $1.20 if you know that it’s unlikely for you to get back in at a price below your original buy in?

Or would you consider the proposed method a better decision?

Let me know. My brain is foggy right now.

Thank you,