If you are willing to spend hours and hours and hours stuck in a
network room fiddling with routers and memorising thick stacks of
notes on networking, then by all mean go ahead.
But it takes a whole lot of willpower to do that. It's not easy to
do it.
Procrastinating? You can always procrastinate tomorrow.
No willpower? Then extinguish your hopes of going into networking
because it's one mega huge topic to learn.
I have only 4 words for you: Good luck, have fun.