I (20M) have been trying to start up an e-commerce business for myself. Im not here for any advice on whether or not I should do that.

To get a business/company bank account to receive payments, I need to be registered with revenue as a sole trader. But anytime I am now trying to find out how to register for that, it's impossible. It tells me to register for ROS but for that I need a Tax ID, and for a Tax ID I need to be registered as a sole trader. It's a bit of a loophole. Can anyone help me out by even pointing me in the direction of what forms I need to fill out to start or where I should look to for info? Please nobody refer me to Revenue, CRO, CORE, etc. Theyre all useless for information unless you already know what to look for

EDIT: I think I should rephrase this post into, I have no idea what I'm doing in regards to legally starting a business, and could use some advice.