There is a lot of good advice here but there is one piece everyone has missed...

90% of binging successful is just showing up.

What that means is, you show up to work ready to tackle the day. You do all the jobs. This will let you get expirience in areas that you don't have yet.

Don't let the odd jobs at work become your actual work though, there is a balance. Once in a while, sure, mop the floor. But if it's every day then you need to talk to your boss about it.