Dementors

How do you defeat the dementors near the end? I've gone back in time, but can't save myself and sirius!!!
Help Me!

!!!!Spoiler!!!!!!

OK what you have to do is just cast the full effect of the patronus spell on the dementors the first couple of times and try to make a path through them, then when there is a path more or less made through them you can press X to run faster and get to the main dementor (btw u can press X to make the stag run faster anyway anytime) let me know if this helps cos if not i can try and help more by clarifying

This part is all up to luck and aiming. There's no special way to get it right. Just don't wait until the Dementor starts sucking at Sirus's soul before firing.

When a dementor gets close try to aim and fire at him. Remember you're in control of the Patronus. When you fire it control it so it hits the dementors. I think after about reflecting 10 Dementors you advance.

That's what I wrote. You defeat a few Dementors and advance further into the game.

I am at the lake for the first time, does this mean I am at the end of the game already? I too am getting killed, looks like I have to try harder.

thank you for that thurough, yet not entirely accurate help. ( if they get to close to you your suppose to pull sirius back by toggling)

yea i also and stuck i use the advice but it is not working for me