What can i do if my bedrock account says im logged in and i am but it doesnt work for...

None of those options worked, the account is definitely correct and I am using the same account for both. The launcher seems to be up to date as well. Surely, if I am able to play minecraft bedrock with that account on ios (I am able to join realms) then my account must have Bedrock, additionally when logging into the launcher with my brothers account who plays bedrock on PC, all it says is "Play Trial" so something is definitely wrong with the launcher. Is there anything else I can do? My PC is 7 years old, does it have something to do with that?

Hello, so i changed my account name and logged onto a server I play. When i logged on i had nothing in my inventory (On Minecraft Bedrock Edition). So I got the same name to the account back, but I can't log on because it says "XUID doesnt match possible impersonation attempt. Can anyone help with that?

Nothing works and I got bedrock trought the mobile version I think because I bought Minecraft Bedrock on my phone and then I remember I got Xbox account WITH that mobile bedrock and here Iam. I really dont know what is going on. And I got Bedrock Edition on my account. When Im In Xbox with the SAME account it still says I need to buy it.

Im doing this during the setup and the FAQ only says that logging in will transfer purchases from other bedrock platforms and not about what to do if your having trouble logging in

im going to be as clear as possible. when i log in, i get the pop up, and so on, im asked for my parent to accept blah blah blah, but when i enter the information, it says it doesnt match anything. as in it doesnt exist. ive used every password ive ever
used on my xbox and NONE of them worked. the account simply doesnt exist anymore. i cant reassign the parent account, cause i cant bloody log in. i really just need a way to get around this or something. i cant waste anymore of the gold account ive bought.
is there anything that can help fix this?