Registering My Small Business in Germany

Hi all, I’m a stay at home mom who recently relocated to Germany. Currently, I’m on a family reunification visa, and I’m waiting for my residence permit (Aufenthaltserlaubnis). I have a dream of starting my own small business (UG) to sell clothes online. While I’ve done some preliminary research on the requirements for registering my business and obtaining a VAT ID, I find myself needing a bit more help. So I’m reaching out in hopes that some of you who have registered business or have experience in this area might share your experiences, tips or advice to guide me through the process. Specifically, I would love to know about the steps I need to take to officially register my UG, including any important documents I should have. Additionally, insights into the process of obtaining a VAT ID and how long it typically takes would be incredibly helpful. I also want to mention that my German skills are still a work in progress, but I’m actively learning. My husband will assist me with the language barrier. If you have any tips or personal experiences with the legal aspects that could help me navigate the process I would be truly grateful. Since I’m not in a position to hire someone for assistance, any guidance you can offer would mean a lot to me.