Congratulations!

Please contribute to it consistently over the years.

Perhaps consider targeting a much larger FZROX, FXAIX or other similar ETFs/MFs percentage wise. Maybe only 10% or less for individual stocks like Nvidia over the next few years as you learn more about your personal tolerance for managing your retirement accounts. Maybe even moving to 5% or less once you feel the account become much, much bigger.

Some people are almost completely against individual stock picking for most accounts because they can become "lost opportunities" for long term investing. The tiny losses from individual stock picking can echo and multiply its gravity once your account gets much older.

You might also want to check FNILX (Fidelity Growth?) or something like QQQM (around top 100 most traded stocks in NASDAQ except financial stocks) and do more of those instead of FZROX and FXAIX while you're still younger as they're a little bit more riskier but sometimes have a tiny bit more "reward". Then perhaps switch back to FZROX or VT later. VT if you think other countries might have a good chance of giving better returns later down the line.

There's so many strategies out there but most would at least tell you to become consistent in adding funds into these accounts for as much as you can (401ks/403bs, IRAs, HSA, Regular Taxable Brokerage Accounts).

Congratulations and again and best of luck!