Playing and winning online poker is a science. It is both a skill and an art of mastering things that most players take for granted.
If you are signing up for an online poker game, keep in mind never to choose the any game at this limit option. By choosing this, you are also hindering your capacity to take control of your position on every sign up list. There are options that give you the privilege of having the top position by winning and giving up the place by quitting and at the same time you could still rejoin and have you name at the bottom of the list.
Always look for a card room that fits your style. This way you always get the upper hand. If luck strikes in and you get on a bad round, look around the page for another table.
Playing two games at the same time seems a nice idea. It seems that by doing this, you could double your money in one playing hour. This could be true for some players, but remember, it happens for a few and not for everybody. Besides, playing two games at a time would definitely lay down your small blind more and you sure are most likely to tilt. Keep yourself focused on one game. This way you could have the upper hand...