Self taught programmer here. If your goal is to contribute code. Get the project’s code, learn how to run it. Go pick an issue, great if it has a first time contributor tag or something. Try to fix it. If someone fixes it before you, now you can compare fixes. Sounds simple? It kind of is, but there are some side quests involved. This processes will force you to learn the bare minimum to get the task done. Your solution will most likely be shit but that’s great, you can only get better. Programming is less about knowing how to do something and more about figuring it out as you go. Google, chatbot/llm, read the docs, ask others.