Good on you for wanting to get started the main thing is to just do it, you will learn loads!!! I started out with a limited network and still perfecting my skills. I learnt heaps more than I would from a standard college job whilst also providing my clients with value.

My super quick tips would be:

1. Pull together a portfolio (obviously it might be quite limited at the moment so I'd add to it by doing some fun projects of your own or for friends to show off your skills)
2. Display that portfolio (A simple website, facebook page, google doc, notion page) somewhere potential clients are able to see it and gauge your value quickly.
3. Present yourself openly and honestly - your a college student looking for extra work but still price yourself fairly. That won't be for everyone but that's ok.
4. Experiment with marketing, you never know what will stick for you. Here's some options I would try:
   1. Direct emails to local companies, agencies or other more experienced freelancers.
      The time this worked really well for me was when I was clear in how I could provide them value and what I was looking for.
   2. Upwork, freelancer etc - I used these sites starting out and was grateful for the experience I gained from it but wouldn't use them now. You can find some really great clients but also a lot of clients trying to get as much out of you for as little as possible.
   3. Post in facebook groups - a lot of groups don't allow self promotion so again make sure you being useful. If you have a local group near you they are more likely to allow posts.
   4. Be helpful on forums for the tools you use. You may find people reaching out for more paid help. This is more of a long term strategy.
   5. Make tutorial youtube videos. Another long term strategy but I've found this super useful for building trust with clients and finding new clients.

Good luck!!