Coming from a multitabler, since I am a multitasking junky, if You have the ability to think fast, it becomes more or less like a reflex. If you have a specific plan stick to it, and it really isn't hard to play.
One very useful trick I developped: Stack your tables. Often enough I find tables with fishes, or even MEGA fishes. So what I do, is when I notice a fish, (someone shoving pre Q 9 and winning for example), I take that specific table and get it out of my stacked tables. I know have a constant eye on that fishy table and I can get my money in good.
Pay attention, I fount out that sometimes, 90% VPIP players don't necesserely shove with Q7. Alot of players will do 90%/40% with only min raise and fold on reshove all the time. I think they are trying to catch the multitablers who only look at their PT3 / HEM manager. Unless I have a decent proof that the player is a fish, I wont call with my 10/10 on a 3bet shove from a 90/40 player.
Finaly, your BRM is decent, I also am doing prety much the same thing. I am at 120$ right now, As soon as I cash my 10$ stellar reward from the 60 FPP remaining, I will withdraw and move to a site with rakeback, hopefuly full tilt will allow it for my account. If I have 150$ I will move up in limits, if I piss cash of I will go down in limits again and so forth.