IVV
iShares Core S&P 500 ETF
stock NYSE ETF

Absolute facts. Can’t bury my $IVV in the woods.

For starters, research what broker you want to use because brokers will have varying fees. Trading platforms such as Robinhood and Trading 212 are more appropriate because they have marginal fees and are ideal for buying and selling effortlessly. Traditional investment platforms such as CommSec are structured differently, have larger fees, and are more appropriate for investing large sums of money over a very long period. Investing through your bank will also be more costly. In short, use trading platforms instead. Also consider that types of investments you want to make because not all brokers support the same investments and it will vary by region.
One you choose a platform, invest in an ETF that tracks the S&P 500 index. This will be something like VOO, VUAG, IVV etc; these "tags" are ticker symbols for the ETF which make it easy to identify the investment. There are many different kinds of ETFs that track the S&P 500 index such as "acc" and "dist" and "hedged" Vanguard, Invesco..., but as a complete beginner, just pick one, they are all mostly the same.
This is the most reliable investment you can make because in the long run you are guaranteed to make returns, it averages out at around 10% returns per year (slightly less if measuring in real returns). But honestly you can expect more than 10%.
While your money is in an ETF working for you, open a practice account and play around for a couple of years, because you are very young, and even older experienced investors make mistakes. While you are trading on a practice account, do some research, find out what "hedged" is etc. Look at how the market behaves, learn about stocks, ETFs, fundamental analysis, technical analysis... Look at different investment strategies. When you are older and more experienced, you can start thinking about buying stocks and look at what your long-term investment goals are and how you plan to balance and diversify your portfolio.
Start simple. Good luck.

Here's the secret sauce. Buy these: IVV QQQ IWM IJR XLU ICF GLD SLV IWR XLE IBB XBI DIA. You can do equal amounts or overweight the ones you like best. Here you have your large cap growth/value, mid/small cap growth/value, energy, biotech, precious metals utilities and real estate. DONE! Thank me later and stop playing with your money. This is only for people who want to get rich slowly and stop watching the market/ticker every minute of every day!

Thats obvious not bad compared to IVV, but it was 9 or 10 last year.

do you know of an S&P500 fund that reinvests dividends that can come close to those numbers? cause VOO and IVV aren't even close.

IVV, MDY, SPY, and VOO are a bit too high for me rn

Step 1 is to start a Roth IRA and invest in broad market ETFs like VOO, SPY, IVV and QQQ until you reach $20,000. Then start researching top companies that will grow over the next five years and invest in about five of them. Once you get there, look at buying a home. Adding some gold after that is fine. Rental properties can be good, but start with stock investments and buying a home first. Insurance is not an investment.