is it worth doing this when it is growing, or do you need to wait for a small pullback? There is a small dynamic, but I do not understand how to do next.
Always have a target to sell you cryptocurency and don't wait for the market to make that decision for you. If you wait on the market, you could sell too early or sell too late. Depending on a pullback means you're setting yourself up for failure because what if that pullback was a big one and it takes you out of profits or reduced your profit margin by a very big line that when you sell, you would no longer be in profits.
When investing, always have a target set for yourself to take profits, you taking profits must not be you exiting the market totally, you can take profits at different stages so when the market dumps you won't be affected much and if the price continue rising then you can sell some tokens at higher values.