Before you get flamed:
KEEP A LOG, at least training-wise
Have a training plan/get a training plan
Read everything you can on this site. If you really,really don't have time to read...also mention this. (time spent on WoW, PS III etc. doesn't count as "time you don't have")
But, if you say you want to learn proper routines, the first step is to read everything on this site. (less so the specialty training articles- arms, shoulder specialization etc.- more the routines and generic nutrition articles)
I'd say start with coach Mark Rippetoe's articles and Jim Wendler's 5/3/1. Also, Joe DeFranco's Westside for Skinny Bastards. And, Christian Thibaudeau's I Bodybuilder program.
Tell us in what your max lifts are (preferably 1RM or 3RM or 5 RM...or whatever you do) (on squats, deads, a horizontal press, a horizontal or vertical pull, maybe also a vertical press and the other pull)
Give us an idea of what your routine has been for the past few months, tell us if you're still making progress on it, or if it has stalled.
Here's a bit of basic info: know that soreness only means that...you're sore, not that you'll grow or get stronger. You can grow/get strong as much, or even more than you would by getting sore, without getting sore. Also, you should rarely, if ever, go to failure (also, read about Charles Staley's EDT, and Chad Waterbury's articles). Stop the sets when the weight slows down, or, at least, when you reach technical failure (form starts deteriorating)
Also, know that you don't need 12 sets and 3 exercises/muscle group/session (in case you did that). On average, 20-40 reps with the work-weight (not including warm-up) are enough.
Finally, whenever possible (pretty much, almost always), accelerate the weights on the way up as much as possible without deteriorating form (though this doesn't mean you should use SUPER-STRICT form on anything), and lower them under control.