While not perfect Evolution is as much proven as any other mainstream theory but is constantly being tested by its proponents who are clearing up the boundaries where it seems to flounder.
There are some areas where evolutionary theory flounders. One which is cited is the insect swarm that settles in a way that makes the colony look like a flower, which camouflages them against predators. Another is Religion, which has never provided additional survival value to more than a small number of people (priests) the majority of whom have, historically, been celibate, and therefore has provided no benefit to the species, nor has Religion provided much in the way of helping societies survive.
Yes the idea of evolution is accepted and the areas where it has difficulties are constantly being addressed by researchers who hope to make a name for themselves. Before disbelieving it do your research. Read a lot of books on the subject. as well as books on how the human race arose.
Remember also that the fact evolutionary theory may be flawed does NOT mean that other theories such as creationism and Intelligent Design are correct.