[clearcarbon]

Firstly I think this idea of rockstar programmers is truly damaging. Yes there are differences in peoples coding abilities but the vast majority of your ability to develop good software, that solves peoples problems is in how you and the team works together, not your ability to write a technically proficient algorithm. It's important to find a team you can work well with and that works well with you.

Secondly 70-90hrs a week is not a healthy work schedule, you're going to be constantly working while exhausted. Even the most productive people I've seen are tired at the end of a 45-60 hour week. If possible give yourself time to rest.

ps. Piecing together code from multiple sources is what 99.9% of programming is. Calling libraries is piecing together code just as copying and pasting from stackoverflow is. You need to understand that code to be able to piece it together effectively as you clearly do.