It might help to specify what you're trying to do, as well: keep using your current scanner or whatever hardware you've been using, or move to something more current and up to date, or potentially beginning to use SDR hardware (computer controlled radio receivers, not quite the same as having a scanner with a PC interface however) and doing your monitoring in that respect.
This whole hobby can be a bit overwhelming to most anyone when they first come to it, but if you've had a physical scanner or receiver and know how it works then it's not too difficult to get a little deeper into things. If, however, you just got a scanner or some other receiver and you really are new to this hobby - I see that was your 1st post here so welcome to RR too - then of course, ask questions and people will help you get rolling.