While the other commenters provided several voice cloning projects, I would like to point out that I haven't been able to find one that works well for South-American Spanish.

Yes, you can train/fine-tune models on your own voice with Coqui

Elevenlabs, coqui, piper, Microsoft, Google, Apple. Seriously. They all can these days. Don’t forget acapela or nuance.

Yes, elevenlabs can.