No, just because it's what you know it doesn't mean that's a good place to try. If there's no opportunity then it doesn't matter how much expertise you have, it

No, just because it's what you know it doesn't mean that's a good place to try. If there's no opportunity then it doesn't matter how much expertise you have, it's like drawing blood from a stone. You might well be better off starting in something which you have less expertise but there's a bigger opportunity.