Either you need some budget or prior internet marketing experience
I started dropshiping after I was bankrupt. If you're a positive person you'll find positive ways or if you are a person thinking you have only 5$ and if that 5$ doesn't convert you'll close and ask for refund. If that is the case I can bet that internet business is not your cup of tea.
There are so many free ways to get sales even if you don't have budget for ads.
Post on groups, post on Instagram, post on Craiglist, post on Twitter, create videos and post on YouTube.
Not only this business but anything in life is achieved when a person is determined and passionate.
To catch fish you need a lure or bait
To catch buyers you need ad budget or if you are broke research on how to promote free on Facebook etc.
My web tool with a winning strategy I will be revealing that'll surely help most of you with tight budget.
I have a trick using it one can advertise upto 1250$ on Bing ads for free.
So there are ways which can help but only if you dig inside and find such ways.
PEACE