100 shares of NVDA at 453 pared down to just profits from 869 sale would mean holding about 48 shares and selling 52 shares. After today’s after hours movement your invested profit would be worth about $48k, or about $6300 more than when you cashed out your initial investment ($41712).
You take that same $41712 and buy INTC between March and now. If it was bought in March then you’re in for something like $43/share or 970 shares. Intel has been sliding since April and is now at $31. Your profit from NVDA has shrunk by nearly 30%. In the worst case (you bought in March rather than April), you’ve given up near $19k in profit by following your convictions. Your gains have gone from 115% (had you held) to potentially as low as 70%. I guess it’s all house money anyways though, right?
In the end I'd probably just take the easy way out and go buy VTSAX and chill.