How to structure a portfolio at 18?

I just turned 18 recently, and I’ve been getting into investing, trying to learn while also getting some hands on experience.

Initially, I was being dumb and bought a ton of penny stocks like soundhound and just lost a bit of money, because I don’t have much money at my disposal.

I currently have $1300 invested, and I know this is not much at all. However, I would like some advice to build off my current portfolio as I earn more money from working.

I currently have:
1 AMZN
1 AAPL
6 INTC
10 RIVN
1 HOOD
2 SYM
1 Tesla
Some VOO

I’m planning to invest about $300 into crypto.

I would like to humbly request advice on how I should change or fix my portfolio? Should I sell some, buy some more? Hold some? Thank you in advance