tl;dr -> I'm quite anxious with my money but don't want to resign to having the minimum expected returns

Hi everyone,

Thanks in advance for any insights/advice you have to offer. So I (24M) became interested in investing in late 2019 and have learned over time that I really don't have the disposition right now to pursue volatile stocks (by my definition, things that typically move >2% in a day). I have intellectually known for a while that companies like NET and F have good reasons to appreciate, but whenever I make a position in one of them, I become totally preoccupied with checking my portfolio and I really don't need the stress.

What I'm working with right now is being consolidated, but in stocks that are tried and true. Thus, my holdings are simply:

50% MSFT

25% VGT

25% QQQ

This is clearly very tech-heavy, but as I contribute over the coming months/years, I want to build a position in COST and other large-cap stocks in different sectors. I've chosen what I have to start because I really don't see tech underperforming the general market over a 20-year period barring anti-trust break-ups.

Should I swap VGT for VTI? Are these tickers I can likely sit in and contribute to without looking at my portfolio every day?

Thanks again to those who read,

Cheers!