$Rocket Lab (RKLB.US)$ should i buy now or wait ? new to trading not sure what to do..

$Rocket Lab (RKLB.US)$ one day ill tell my unborn grand children that I bought this stock when it was $22 and they wont believe me.

$Palantir (PLTR.US)$
Palantir Technologies (NASDAQ: PLTR) is one of the most popular artificial intelligence (AI) stocks on the market. Shares have soared 345% year to date because of encouraging financial results and enthusiasm about its position in the burgeoning AI economy. That makes it the best-performing member of the S&P 500 (SNPINDEX: ^GSPC) in 2024.
Last month, Palantir transferred its stock from the New York Stock Exchange ...