AppsTizers4U will share programming experience in a simple way with very short blogs, and will start at level zero for different languages.
The next few weeks from 2019 on you can find blogs about Swift programming. This blogs will build up your knowledge and experience from bottom up. If you want to begin to start programming in Swift come back read the blogs and experiment a lot.
Most courses will start with creating apps, this is differen. The tutorials here are focussed on core basics of programming and will give you the foundation of the programming language Swift without using macOS and Xcode or directly creating apps.
With a good foundation its much easier to create apps.