Then I ask my first question, some days later this was closed as a duplicate. Also I make an acceptable answer. After that I did nothing but look at some Q&A.
The question you linked to might be the first one you asked, but it's not the only one. The question ban is automatic, there is nothing anyone can do to help you reverse it, it's completely up to you. Read the instructions in the linklink carefully (twice) and follow them to the letter.
You should also read and follow the advice given on:
- Matt Gemmell's excellent article What have you tried?, and
- Jon Skeet's Writing the perfect question blog post, the canonical guide on asking questions on Stack Overflow (the principles apply on Programmers as well).
While your willingness to learn is admirable, you'll have to keep in mind that we are all freely volunteering our time here and expecting you to do some minimal research and to show us that you at least tried to solve your problem prior to asking is not unreasonable.