TheEpicSock

For those not in the know, these violins are sometimes worth up to hundreds of thousands of dollars and very very difficult to replace. Even a garden-variety professional-quality violin can be mid 5 figures.

Violinist here.

I strongly recommend against self-learning from YouTube. There are a lot of bad resources (ExpertVillage comes to mind) that will do more harm than good and teach you bad habits that you'll have to unlearn later.