[Matt]

At least with my routine, I try to split things up so I work everything hard once a week. That means chest/tris, back/bis, and shoulders/legs. I do cardio on other days. This amounts to Mon/Wed/Fri lifting, and at least Tues/Thurs running.

I have found in my experience that sometimes it's even hard to train the same muscle group every few days depending on your routine. Mine is centered around the major compound lifts with only a little isolation thrown in. You will get the delayed onset soreness with something like squats, where your quads feel fine the next morning but are sore as can be two days later. That's why I try to do the 3-day split and only work everything once a week. Plus I just don't have that many blocks of free time where I can lift (at least during the hours where the gym isn't going to be a zoo) with the way my schedule is this spring.

As for those push-ups, they really aren't going to build muscle the same way weight training will. They are almost the equivalent of high reps/low weight workouts - good for muscle endurance but not really for strength.

You should at least be taking a day off every couple workout days. Seven days in a row is just going to take an unnecessary toll on your body. It will be mentally draining as well and not conducive to keeping yourself motivated in the long-term. Plus, it will lead to overtraining and diminished results.

Above all else, I have to stress the importance of nutrition in all of this. You can lift and lift and lift...and if you aren't getting the right nutrients and macros you're going to make some very slow progress. Your muscles need the right things to grow, and they grow outside the gym. Really watch your diet and make sure you are eating lean protein sources and don't cut out good carbs.