anytime you miss a workout it will delay your routine a bit as long if you are not overreaching. I missed my last workout because I decided to go breakdancing instead. Still a workout, but my deadlifts wont go up if I dont deadlift.
If you dont hit the cardio too hard I dont see it having a bad effect on your recovery. In fact it might speed your recovery a bit through increased bloodflow if you are a couch potato type. Just depends on how hard you tax yourself and how much energy you expend on the cardio.
I like to think of my body as a glass of water that fills from a slow tap- but eating big and sleeping big can help open the tap. Over time my glass can get bigger if I train properly. Any time I pour out effort, I have to wait for it to refill. The more effort I pour out, the longer it takes to refill. If you want to get bigger or stronger you will need to put weightlifting, eating, and sleeping first on your list.