[2023] Can't link another xbox account.

Hello,
So I recently got a pc which im using now, and made a new xbox account. When I tried to link my old xbox account to my ubisoft account so that i could get all of my cross progression stuff, it had automatically linked my new xbox account with nothing on it. I then tried unlink the new account and link my main account but it doesnt let me because It linked the new account permanently. I tried to make a new ubisoft account so that I could link my original xbox account to it, but then when I tried to load up siege on pc, it says I dont own the game. I am extremely frustrated and broke so i do not want to spend another $20. does anyone have advice for what i should do?