Does he know that you're planning to do this? If not, why not come up with a different anniversary commemoration that is not so stressful for you -- write him a poem, make him some cookies, whatever.
I think doing the list is a good idea to focus yourself on the good things, but you can make it private, for yourself, and without a deadline -- just to remind yourself of why you DO love him. Without all the pressure of having to get it done and knowing he'll see it so it has to be good enough, it might be easier?
As far as coming up with ideas -- think of the times when you had the strongest good feelings for him. How did you see him then? Think of things he did that made you happy, big or small. Think of silly, personal stuff, like an inside joke that you and he share that wouldn't make sense to a stranger or just little details like (an example about my DH) I just love his hands, he has beautiful hands. Think of when you first decided you wanted to spend your life with him. Why did you feel that way?
I think doing the list is a good idea to focus yourself on the good things, but you can make it private, for yourself, and without a deadline -- just to remind yourself of why you DO love him. Without all the pressure of having to get it done and knowing he'll see it so it has to be good enough, it might be easier?
As far as coming up with ideas -- think of the times when you had the strongest good feelings for him. How did you see him then? Think of things he did that made you happy, big or small. Think of silly, personal stuff, like an inside joke that you and he share that wouldn't make sense to a stranger or just little details like (an example about my DH) I just love his hands, he has beautiful hands. Think of when you first decided you wanted to spend your life with him. Why did you feel that way?