rifflections

Hello, I've recently moved to the UK and I will work as a self employed. I'm trying to figure out if I did everything correctly to set up my tax accounts and register to receive my UTR. So I created a business tax account and followed all the steps in order to receive a UTR, which I will then use to register for self assessment. I entered all the data, received a confirmation code and now I'm waiting for the UTR. However, I just realised I also have a Personal Tax Account. But now I'm wondering if I should've registered to get the UTR through my personal account and not created a business account? (if that's even a thing) Will the income I generate as a sole trader be registered to me, as a private individual or is that just my business' income? Thank you in advance for your input!