Do you know this feeling when the next day is the day you are leaving for a trip you 've been counting the days in reverse and you can't wait because the time is so near and yet so torturously faraway?

I feel like this constantly lately without a particular occasion on the end side. Just an endless anticipation and my mind is always with one foot on the next step. I think this causes me anxiety and crushes my concentration as I cannot get hooked in the present moment, I am always half caught in the future if that makes any sense.

I am not sure what has caused this mind shift, but I am sure that if I get rid of it, my mental state and quality of life will hugely improve. How do I get rid of it though? Any thoughts are more than welcome!