So I read about something called 'Newbie Gains', which is essentially how new people starting a workout routine will see themselves gaining a lot of muscle mass in the initial first few weeks of training. A good example is my friend who spends all his days on the computer, very unfit and skinny, however upon starting a 5x5 training routine and sticking to it, found himself dead lifting 60kg very easily after about 4-5 weeks (though after that he stayed in the 60-70kg weight range for a good few months).
So my question being, since I have no access to a gym (but do have dumbbells at home), will I end up sacrificing any gains by doing low weight exercises such as dumbbell dead lifts with only about 12kg weights max on each hand? I imagine 12kg is going to become extremely easy to dead lift very fast, so could the unavailability of higher weights end up making me miss out on my 'newbie gains'? If it helps at all, my intention with all this is to gain muscle mass.