@dj, if you're interested in copywriting or other freelance writing, there's a few ways forward:
1. Upwork, which is a freelancing website. This is not always incredibly lucrative for your time, and some of the clients are frankly craptastic. However, you can also use this as a base for creating a better portfolio, and maybe getting some repeat clients. The site is free, so as long as you're picky, all you have to invest is time.
2. Aquent is a staffing company that puts lots of creatives (writers, designers, etc) in various positions, typically short-term temp/contract positions. Some positions are part-time, and some are remote. You may have luck here.
3. If you want to get some writing on AND work on your website skills, start up a freelancing site. This should house your portfolio, and if you like the idea of blogging (say, about the outdoors), then the site can function as part of your portfolio as well.
4. If you really, really need to work on building up your portfolio, and are willing to do non-profit work, contact an outdoors/nature non-profit to see if you can do any writing for them. This may be especially effective with small local non-profits, who are often under-funded and over-worked.
I'm sure there are other ways forward, too. Mostly, it's getting yourself up and out there!