I'm unqualified for anything else. I'm barely qualified for this.

I'm unqualified for anything else. I'm barely qualified for this.

I'm a musician. It's what I do! I wouldn't be too good at anything else.

I never have anything go wrong. Never have a backache. Never have a headache. Never have anything else.

I couldn't do anything else, I enjoy it so much. But I find it tough.

You should not have any special fondness for a particular weapon, or anything else, for that matter. Too much is the same as not enough. Without imitating anyone else, you should have as much weaponry as suits you.