None of the things you mention are good at filling in gaps. They’re not useless, but they’re not very efficient or practical. The best way to fill in gaps is t

None of the things you mention are good at filling in gaps. They’re not useless, but they’re not very efficient or practical. The best way to fill in gaps is to work with other people and learn from them. They may also be self taught. Your gaps are other people’s strengths and vice versa.