Is this a good or bad portfolio for a beginner looking to invest and hold long term for good returns?

Is this a good or bad portfolio for a beginner looking to invest and hold long term for good returns? 20M holding for 10yrs but thinking later on adding more EFTs and stocks Roth IRA acct | efts (fidelity) Voo Vxus Avuv Qqqm Brokerage acct | eft & stock (fidelity) Shdc Nvda Google Microsoft **Roth IRA — 70%** VOO — 30% VXUS — 20% AVUV — 10% QQQM — 10% **Brokerage — 30%** SCHD — 10% NVDA — 7% Google — 7% Microsoft — 6%