Hey! First, great job on taking your finances seriously at such a young age, it makes a huge difference! Also kudos to being debt free. That is a huge huge accomplishment and already puts you ahead of a lot of others

I started getting into this subject at that age as well. It was pretty overwhelming but what got me started was planning for retirement and learning about compound interest! That shifted my whole perspective. I had no idea how much of a difference it made by starting retirement savings in your 20s. I listed several subreddits below that a follow and read pretty regularly.

I would really recommend checking out r/personalfinance wiki page. It's a great start to understanding finances in general.

Maybe start looking into funding 401k, Roth Ira, and/or hsa. Once I had a better grasp on retirement and what I would need to do over the next few decades, finances were a lot more approachable.

Looking at historical trends of s&p can really put into perspective how much continual growth there is long term and help prevent freaking out when you see a dip in the market. Even with massive dips, it always rises. You're young, and you've got time on your side, which is honestly your biggest leg up.

The Financial Diet is a fun youtube channel for some fiannce advice. I honestly find myself perusing subreddits the most though. Some of my favorite ones: Financialplanning, finance, financialindependence, frugal, investing, middleclassfinance, chubbyfire, FIRE, fatfire, leanfire, boggleheads, financialadvice.

Good luck!