When your idea is taken and you think it really worth it, you continue to improve it to make a better offer It is okay to have competition and it is also okay to not be the first proposition. What counts, in the end, is how serious you are and the quality of the product you are able to deliver.
Avoiding the sun might be a bit drastic. There is an in between letting your skin to burn and hiding it from UVs, the latter actually provide vitamins to your skin.