I’m here to rescue you, my luv /p
So…uh, depending on the type of roller-skating shoes you are wearing, there may be a break on the back or front.
Or you could do the T-stop; which looks like this:

And I recommend holding on to something/be next to a wall; so that if you fall you have something close to stable yourself.
Please don’t go fast 
And wear protection gear.
This message is sponsored by (me) a former rollerskaterist
Have fun!
REMEMBER NOT TO DIE
Ilysm /p