As a digital marketer, your job can vary from doing on-site SEO for a client or running ads to their e-commerce shop. 

As a digital marketer, you need to see all the variables which might impact the end result. 

Also, you can niche down and only do SEO or social be social media manager only. 

Opportunities are endless.

It depends on the niche;
Computer;
Phone;
Grahpic design skills;
Copywriting skills;
SEO.

$1500 - 5000 monthly

✅ Good money

✅ Great future prospects

✅ Intersting

✅ Low competition

✅ Not hard to start

❌ Hard to establish yourself

❌ Huge learning curve

❌ Can get stressful

❌ You might encounter a creative block

❌ You will need always to learn and expand your knowledge

The best way to find clients is to establish your own brand and have an online presence. Another way to get your clients is through local classified ads channel or use Upwork / Fiverr.