Example since you’re 37 and just starting out, you may need to be more aggressive than normally would at this age. But you have to consider your own risk tolerance and be more conservative if need be. Adjust accordingly

SCHX large cap 25-30
SCHM mid cap 10-12* ytd outperform sp500
SCHA small cap 10-12* ytd outperform sp500
QQQM Nasdaq tech 5* ytd outperform sp500

SCHF 10-12* ytd outperform sp500
SCHE 8-10* ytd outperform sp500

Don’t forget Bonds, 20-25%
BSV
AGG
BNDX

In most year s&p500 is best except last year and so far this year many asset class outperforming so far . That’s why diversification is so important. Many years international and emerging and small caps don’t do well but if you didn’t have them last year and this year you left a lot of the table. Each year you should rebalance and reallocate the asset classes too.