Programming

This is how I feel about music

I learned it because I had to write a WPF desktop application, so you could start with WPF tutorials. I was already very familiar with Java, which is very similar, so it wasn't too hard. Last time I used it was in Unity. You might want to find a good free online course for C# to get a good grasp of C#/Java's style of OOP, design patterns, and all that kind of stuff.

Java and C# are very similar, worst case scenario learn Java, then C# will be easy.

Depends how you learn. Being mindful of what your goal is helps. C# can be used for console apps, it can also be used to make ASP.Net websites, further afield you can program the Unity games engine with C#. Each of these will have "absolute beginner most basic first steps" type tutorials out there. They'll all have some similarity as you'll need to just learn the C# syntax one way out another, but it miles easier doing this if you're vaguely interested in the types of apps you're heading towards.

If all else fails, message me, I was there once, about 20 years ago..

I just jumped in, start making some cool projects

Jumping from loose-typed language to strict-typed language will be hard.

It's also a matter of your general programming experience. Once you write, like, ten thousand lines of meaningful code in Python, learning C# should take you a month or two at most, you'll know most programming concepts and algorithms intrinsically, and the rest is just learning syntax.