Thats a decent one, try to make the weed equal all the way across. You're going to have to push the weed near the ends inwards a bit, the rolling back and forth to get the paper to form will move the weed back into place properly. You may have to stop rolling back and forth to push the weed back into the middle if you're a bit OCD with your form rolling.
Also don't roll from the outside, roll the inside, make sure its formed properly (roll it back and forth for a minute or two) and it'll just fall into place. When forming it, it might be easier to roll from the middle, then roll from the outside a bit to form it. But when doing the final roll and lick, roll from the inside, use your whole thumbs. Put the front of your thumb's nail pointed to your other thumb's nail so the thumbs are rolling the whole thing at once.
or u can just go get a joint roller
