Slowly moving towards more ETFs..currently in VTI $Vanguard ...

Slowly moving towards more ETFs..currently in VTI $Vanguard Total Stock Market ETF(VTI.US)$ but possibly looking at QQQM too. Currently invested in MSFT $Microsoft(MSFT.US)$ , GOOGL $Alphabet-A(GOOGL.US)$ , AAPL $Apple(AAPL.US)$ , and TSLA $Tesla(TSLA.US)$ . Too much exposure to own any of these in addition even if less than 10%? Maybe selling two? Or just hold and not invest in QQQM.