Seeking Advice on Portfolio Allocation

Hey everyone! I'm 20 and just starting my investing journey. I'm looking for some advice on how to allocate my portfolio. I’m considering investing in VOO, SCHD, VXUS, and QQQ. Does this sound like a solid portfolio to you all? Should I be looking into individual stocks as well, or stick to these ETFs? And how would you suggest I allocate my portfolio for a balanced approach? Any other stock recommendations would be really appreciated! Thanks in advance!