The art of not contributing aka "I'm not good enough"

Imagine you have just started your tech career. Your road is full of unlimited possibilities. You are seeing yourself as the next Elon Musk or Grace Hopper, it's just of matter of time.
You are working on you grand "idea". You are having sleepless nights (or not). You are asking questions and gaining knowledge. Things are going great. Just great.

Time passes and you've gathered quite a bit of skill under your belt. You are confident now; ready to join online forums and "showcase" your skills. You go to stackoverflow and answer a couple of questions. You do the same on telegram/whatsapp. You clone a repo, ready to start working on your first pull request.

Feedback starts coming in. All your answers have been downvoted on stackoverflow. No one is responding to your answers on telegram/whatsapp. You've just looked at the code and you can't figure out what you need to do. Then it hits you.
"You aren't good enough"
The answers provided on stackoverflow/telegram/whatsapp superseded yours by miles in terms of depth and quality. You can't understand the code you've cloned because you haven't grasped enough concepts. Your confidence immediately disappears. Your crawl back to your corner. You are suddenly tired and frustrated. You are thinking, "do I really have to do this?"

We have all been here. Those who haven't will be. It's one of those phases in a tech career (or any career) that many people have to go through. For many people, it's a phase which scars them permanently.

For this session, I plan on shedding light on the matter. We will go through the difficulties people face when they try to contribute/help out. We will go through a couple of steps and tricks one can use to overcome these difficulties.