What does "lucrative" mean to you? If it's monetary value, then ask yourself why that's so important and what your life is going to look like in 20 years as a result. Do you want to be married, have kids, a happy family where you participate in the home as more than just a moneymaker? I'm not saying that you can't do both things, that is work hard and also have a strong family, but they are often competing desires.
Lucrative for some people means emotional or intellectual satisfaction, not just the money. Personally I'd take intrinsic satisfaction over something like monetary fulfillment (is that possible? can money satisfy your deepest needs?), but that's just me on my highly idealistic horse.