Personally I wouldn't lift more than 4 days a week...right now my trainer has me working out 3 days a week, and one of those is with bands/swiss balls/etc for prehab/rehab work...so I typically only lift weights twice a week. Also has me doing one day of foam rolling/active stretching, one day of Pilates and one day of Yoga...so I am doing something 6 of the 7 days, but only lifting two to two and a half times(sometimes the prehab/reha day has a little lifting in it)...
Hope this helps some. I know when you first start you think working out more is going to lead to faster results, but it really doesn't. The results come over time as the body repeats a process of tearing down and rebuilding the muscle. You will progress pretty quickly for the first 3-6 months, and then a lot of people hit "the wall" where it doesn't seem like you are progressing at all. This comes from the body getting used to the stimulus and having to take time and lay a better foundation to promote more growth. During this time its important not to get discouraged, as you need to remember it needs to make sure everything is ready to grow properly again...your body will refuse to put on more muscle if the ENTIRE infrastructure is not ready to support it---that means bones, tendons, ligaments, etc...your body will never put itself in a position where it could possibly injure itself by adding more muscle to a frame that cannot support it. You will notice "spurts" of growth where nothing will happen for a few months and then it looks like you are growing like a weed for 3-4 weeks. Those 3-4 weeks were set up by the 3 months prior to that--without those 3 months of hard work before, you don't get those 3-4 weeks of growth.
Now back about a year or year and a half ago I was running a Gironda 8x8 program, which entailed working out twice a day for 3 days on and 1 day off...however they were fast paced workouts, no more than 20-30 minutes each and it was volume based...you can only do something like that for a very short time frame before you fry your central nervous system(CNS) and fall into overtraining. I lasted about 5 weeks with that(6 weeks was the max recommended), and probably should have only done 4 weeks as the 5th week was pure hell and I lack motivation...you definitely should not be doing something like that until you have a solid base and have been lifting for at least 3 years...its very intense and if you don't have the proper foundation it will not be helpful and could be detrimental to your progress.