Also another useful tip to give to any aspiring, serious PS3/PS4 player (or really anyone that uses a controller)
Something I've done that I find helpful is putting certain cool downs on a separate vertical/horizontal hot bar. There is a setting which hides unassigned slots so as to not take up much of the screen. You can place these vertically next to your main hotbar or horizontally above or below. Now the reason I do this is for cosmetic purposes only. These are just duplicates of my abilities that are on my other hotbars. However, by putting abilities on these additional hotbars such as Virus, Eye for an Eye, my potions, etc, I can see the timers on all of my cool downs so I know the instant they are ready for use. One of the things I noticed in the past was I wasn't using my potions as much. They are on a separate hot bar. Out of sight, out of mind. Now I can see all my cool downs at all times and as soon as one is ready, I can switch to the appropriate hot bar to use it.
This can be helpful to any class.