I had my first order in exactly 2 months after I started. I guess I was lucky because I did nothing but wait. And I somehow got it. If you want to get some orders faster, here is what I recommend you to do:
Update your Gig in every 2 weeks until you get an order. Add better, modern-looking images and video if possible. Once you edit a gig, it will disappear from the search for about 24 hours, but you have a chance to get it in front of other gigs.
Apply for buyer requests, they may bring someone to you. If you tried and never succeed, here are some tips on how to make your proposals work:
Here are finally some more of my favorite, (best) tips on the forum I recommend: