I've been integrating simple variations of integrals (sine, natural logs, polynomials, etc) for almost a year now in calc 1 and half of calc 2 (2281/2282). The problem now is that I don't know where to start in a complicated integral. All these methods are running through my head and I can't figure out which one to use. I end up spending wayyyyyy too much time on one problem trying stuff and starting over when the derivative doesn't match up. Is there some structured approach to integration?