This is a great question, and you are not alone in your struggle! Many people have a hard time coming up with ideas. Here is an activity that can help generate ideas. I suggest taking a notebook and making a list of things that inspire you. This list may include places, people, colors, artworks by others, events, and so on. Don't think too much about it, just jot down whatever comes to mind. Then take one or two things off your list and do some research! Look at images online, read articles, and go to places that relate to your inspiration. Jot down any feelings or concepts as you do this, even a single word will do. Then look at what you have written and see if you can notice a common thread in what you have discovered. This will point you in the direction that you will naturally want to go. Even if you don't have a specific concept yet, just start making art! This could mean cutting out images from magazines and arranging a collage, or making a few mini paintings. It doesn't have to be "good." The most important thing is simply to start. I hope this helps and good luck!