quick silly quesiton guys thx

im a new one in stock investment guys, just have a similar question about sell high and buy lower plz

i was bought in DCC shares in 0.06 cents couple of months ago, and keeping hold until i sold all at 0.4 per share today earlier. (cuz have a feeling of price will down after 40 percent up )

im still have long time confidence on this stock and believe it will up lot during the january effect, so im trying to wait a good price point to get in again.

my question is, just assume the price down to 0.3 per share then i buy in again , when price going up to 0.5 per share, its that a better profit way which i sold all at 0.4 before and buy in at 0.3 again? (or just keep my shares which purchased at 0.06 is a better way ? )
ignore other risks like could not catch on time etc ...

thx guys