If you have website ,service or product you can definitely earn from adword and make sure you have the best product and competitive prices.
Creating and running a successful AdWords account is very similar to creating a business. You need to have engineering skills (to edit your websites ie. AdWords conversion tracking script), marketing skills (see list below) and research & development skills (keyword research & data analysis of implementation). If you have earned from your business, you can earn from AdWords. 1) Do you have products? 2) Who is your target market? 3) Where do they live? 4) What differentiating factors can you think of to describe your product? 5) Do you have a website? 6) online competition vs. offline competition are very different - Who are your competitors and what have they done?
Yes,you can earn from adwords. You have to choose right keyword for your product,and make it more attractive /catchy and describe it shortly. This ads will give you more traffic and money, but be careful otherwise you can loose money.