You don't have ideas because you don't read.
You can't articulate ideas because you don't write.
You can't leverage ideas because you don't build.
That's the formula for a clear mind.
Your mind is the digestive system for reality. If you want to build an aesthetic body, you eat well, train with intensity, and take your rest. It is not wise to think this doesn't apply to other domains of your life. If you have too many thoughts or ideas bouncing around in your head, you become mentally overweight. You feel sluggish, anxious, and tired. You need to do something with those ideas. If you don't have anything meaningful in your head, you will become bored, and naturally gravitate to what is conveniently available. That's not good. You need to fill your mind with that which inspires you to build something great. If you never bring your ideas to life through the act of creation, they will eventually disappear, and since you need to survive, you will be assigned a job you don't care about working for people you don't care about building projects you don't care about. That is not how you were meant to live.
You feel bored, anxious, or overwhelmed because your mind wants ideas to flow but you won't let them.