Is it smart to sell my profit and buy back later to increase my share count?

I have a Trading 212 pie with multiple stocks and it’s currently doing well (+11.32% overall). I’m up about €423 in profit right now.

I was thinking about selling just the profit part (so not my original investment) and then buying back later during a dip, since the market has been dropping for a few days in a row.

My reasoning is that if I sell high and buy lower, I could increase the number of shares I own without adding new money.

But I’m not sure if this is actually a good strategy or just trying to time the market.

What do you think? Is it ever smart to take profits like this and try to re-enter lower, or is it better to just leave everything invested and let it run?

The stocks in this pie are:

Kioxia @ 20%
Western Digital @ 15%
Sandisk @ 12,5%
Seagate @ 12,5%
AMD @ 10%
Micron tech @ 10%
SK Hynix @ 10%
IonQ @ 5%
Samsung @ 5%