Complex sentence: Strandberg wanted to be veterinary physician but her grades in mathematics, physics and chemistry were not good enough, so she instead wanted to work at theatre; she studied at Dramatens elevskola 1962--65.
Split into simpler sentences: Strandberg wanted to be veterinary physician, but her grades in mathematics, physics, and chemistry were not good enough. Instead, she wanted to work at theatre; she studied at Dramatens elevskola 1962--65.