Would you add to this growth portfolio $mu, $nbis, $iren and $asts

First of all yes I know this is a high risk volatile portfolio. I used to hold the bigger names the likes of $tsla, $nvda, $google and $avgo. However, I wanted to make bigger returns. I was relatively middle of the pack on micron $mu last year and have recently been adding into $nbis and $iren on strength and also wanted some space exposure so added $asts. I currently have on my watchlist $onds, $ter, $serv and $ktos. Any opinions appreciated, I'm trying to build a future growth portfolio, soon all our blue collar jobs may be replaced with AI. I'm currently up 20% overall.