NEWBIE NEEDS HELP: STRUCTURING THE MYSQL DATABASE

Hope is fine!

So I'm a newbie in mysql and I really want to learn this software. I am currently working in my new company and my boss asks me to create a simple software where we can store data in a database. I have no background in the mysql software, therefore also in the programming. I am willing to learn and I think it will benefit me. I have been reading and watching tutorials in a programming software (visual studio 2010) where you can apply the mysql database. I just need a fairly simple system flow to add an offer in the database where I can add, edit, delete and retrieve an offer in the database. Correct me if I'm wrong with the software I'll use. If someone can help me understand how to create a suitable database with relationships, it would be highly appropriate to attach a database design for you to understand.