There is one way of getting better odds at winning. Look for contests where you have to do some writing, photography, cooking, make videos, creating scrapbook pages, colouring, etc etc.
I had a friend years ago that entered a contest at a shopping mall. He had to write a short essay and submit it for a chance to win a Playstation. The mall only received 8 entries in total. Tom won the prize.
The more work it takes to submit an entry, the fewer entries you will compete against. Isn’t a little work worth the chance at a decent prize?