I have a microsoft account for a new xbox one but when I sign in I see only an older...

The profile is the same for the Xbox one and 360. Unless you make an entirely new profile all the info will follow you.

When i set the xbox up i got a default account ‘summersquid’ i then made another account ‘letjord’ i have since removed ‘summersquid’ from my xbox and now only have ‘letjord’ i use the same email that i sign into the letjord account that i use to sign into
the xbox app or my microsoft account but when i do so it just comes up with the ‘summersquid’ account?

I have been on my microsoft account and checked to see if there is any other emails but there is only the one email linked to the account which is the one i sign into my main account with but when i use that same email for my microsoft account it signs me
into ‘summersquid’

I want to switch the email from my older more used account, to my newer email, but I cannot seem to do so, since a Xbox account has automatically been created. How can I delete the Xbox account from my new email, so I can use my new email to replace my old Xbox account? (This whole thing started with me not being able to sign into my EA account, cause my Xbox account was signed into an older email.)

You cant. The Microsoft account IS the Xbox account. They are all one in the same.

I am not sure how it happened. I already had a Microsoft account. When I got my xbox I created an account and got a gamer tag while setting up my xbox. I signed up for xbox live from my xbox using my existing gamer tag and Microsoft account. I then went
to xbox live and signed in using my Miicrosoft account, and for some reason when I did this a new gamer tag was created and associate to my Microsoft account. So, now when I log into xbox live I see one gamer tag. But on my xbox I have a different gamer
tag.

Hi Bigsease30,

Thank you for posting on the Xbox forums, I'd be happy to answer that.

Unfortunately, you cannot merge or transfer a gamertag with it's contents to another email address. If you have full access to the older Hotmail email with the gamertag (ex. you know the password), then you simply just need to add that account to your
new Xbox. You will need to manage your Xbox profile using the older Microsoft Account email. You can continue using your primary email for other services, but your Xbox profile is tied to that older email and can only be changed to another email as a sign
in option using an email that is not currently in use by an active Microsoft Account. Keep in mind that removing any Microsoft related emails (alias) from a Microsoft account and changing to another one, will permanently delete the removed email account and
any associated messages or associations.

If your primary email is not set up to a Microsoft account, then technically you can add that email as an alternate email alias to your older Microsoft account and set it as the primary sign in option. You could then choose to leave the older email
on the account as a secondary sign in option or remove it and permanently delete the older email account. If your primary email is already being used by a Microsoft account, then this will not work and since they're both Hotmail, your primary email more than
likely already has a Microsoft account.

I hope this answers your question!