Portfolio opinion & advices

21yo here, just started investing for the long-term i will try to invest around 2k monthly - 1.2k in Sp500 - 600 in pie with 40% Nvidia, 25% Alphabet A, 20% Apple, 15% palantir -200 in this almost daily dividends pie which is built by this The dividend expert guy in t212

any advice and opinion is welcome

thanks!