You still gotta be 18 to get a roller.
You probably don't know where all those special stores are to get these things anyway.
Just use the apple method.
Joints are hard to make whether you use a roller or not.
I had a roller and all the weed kept exploding at my face cause I kept using it wrong lol.
Fuckin hated how it scattered all over the floor to the hardest spots you can imagine. To this day there is still bits of weed nuggets on the floor of that dorm.

I think everyone is too used to being a weed champ. At least I still remember what it was like being a newbie and trying to make different smoke methods for myself.

But the one thing that always worked that ANY newbie can make is the apple pipe. You don't need any additional attachments either. Just poke 2 holes and you're done. Here's a link on how to make an apple pipe: http://www.waytoomany.com/vids/weed/apple.php