Honestly, I took an online summer course at a local community college for $300 and it was fantastic. I’m 40 and literally had NO concept of computer programming or the underlying science. After taking a 6 week course, I’m obsessed and kicking myself in the ass for assuming it was too difficult or foreign to delve into 10 years ago… It’s one of those subjects where you can easily learn nothing and get overwhelmed if your not interested enough to keep up on the material and practice the concepts beyond minimal requirements. If you are serious about learning and practice a little each day, it’s easy to follow the logic and a fun challenge to problem solve. If you take an online class, it may be useful to use chat gpt to “talk through” concepts and troubleshoot code but make sure not to simply let it code for you. Interact, ask for hints, critique, explanations, and logic. It’s like having a personal tutor once you have the basics down. I’m still practicing and eager to advance my skills (even though AI will likely render my new skills useless by then… lol). Good luck and enjoy More on reddit.com

Here is a free one on Udemy for complete beginners:

https://www.udemy.com/c-programming-tutorial-for-absolute-beginners/

Has around 6 hours of content and has 4.2/5 rating.

If you want to learn the topic quicker then consider the following source:

https://beej.us/guide/bgc/html/multi/index.html

It is not an online course but has enough to get you started with C. The same website also has a pretty guide guide for network programming in C.

More on reddit.com

CS50….. weeks 1-6 are all in C. Best programming class out there IMO More on reddit.com

The common recommendations I see in this subreddit is K&R "The C Programming Language" and "Modern C" books. But... (...) I always lacked the motivation to continue with projects after the course. This time it will be different. I would start with a careful evaluation of where the lack of motivation comes from. Otherwise, believe me, this time won't be different. Maybe you did not focus on the programming fundamentals enough and picked an overwhelmingly complicated project which quickly demotivated you with its complexity? Maybe you were jumping from one tutorial to another without an actual attempt to understand what the for-loop or variable is? Maybe you were vacantly copy-pasting tutorial examples and then stuck for a few hours on the trivial bugs, because of mentioned lack of fundamentals? Or, maybe you spent 10h a day on programming without giving enough time to rest? Start small. Be ready to step back and scale down. Be patient and do not rush. More on reddit.com