Petra- your keyword phrase “Beach Decor” can expect to get 374 hits per day for the number 1 spot on Google, but there are 189,000 websites in competition with you (hard to get to #1). But you can get to #1 easier with the keyword phrase “Sea Decorations” and if at #1 you can expect 50 hits/day and only competing with 12,600 other websites. Also “Beach Party Decorations”, #1 Google spot can expect 40 hits/day and competes with 16.200 other websites.
Can you make money with affiliate marketing? The short answer is yes, affiliate programs can earn extra money and even a full-time income from home. The long answer is a little more complicated. Like any home income venture, success comes not so much from what you choose to do to make money, but whether or not you do what needs to be done correctly and consistently.