I use, have used, or have read each of the following. I recommend them, but with that said, you always want to do your due diligence...
> Good and inexpensive web hosting, along with a decent website builder in case you don't know anything about building sites with HTML5. Also has a Wordpress installer, if you wanted to go that route (you'll save 20% via my referral link): Hostinger
> Start building an email list with Aweber, or recommend to your clients after using the service yourself (free guide): Email Marketing Guide
> Leverage email autoresponders to grow your practice (including AI technology plus get started FREE): Aweber Email Service
> How to write ad copy that sells for your clients: Click here
> Different ways you can earn real money as a freelance copywriter: Click here
> Confidently sell your services as a freelance copywriter (and get paid well): Click here
This page will be updated once in a while, as I come across more services and products I feel confident about.
But now you have to make the decision to pick one or more and get started. I wish I would have gotten started when I was much younger, but I'm glad I finally made the leap when I did, back in 2001.