Affiliate Marketing Secrets

I have online marketing skills and have sold med supp in the past so I know the companies offer a lot of supprt. I’m wondering if it’s worth bringing my marketing skills and new license to an agency and learning the ropes there, or just going out on my own.
Also, what are profitable and less addressed niches? I’m in Massachusetts and will likely end up in California in a few years.
Thanks

I have online marketing skills and have sold med supp in the past so I know the companies offer a lot of supprt. I’m wondering if it’s worth bringing my marketing skills and new license to an agency and learning the ropes there, or just going out on my own.
Also, what are profitable and less addressed niches? I’m in Massachusetts and will likely end up in California in a few years.
Thanks