Can’t upload my gamer pic right now

Multi billion dollar company and it can't deal with an influx of people changing their gamerpic. Sometimes I wonder why I haven't yet bought a Playstation.

That wont help. Sony contracts Microsoft for all their cloud services!

but all my friends can change theirs but I can't

Seeing as the service has been temporarily disabled, I don't see how your friends were able to change theirs... have they changed theirs recently?

Yes it is disabled for all gamers.

Due to COVID-19, some features have been disabled because more people are looking for social connection via gaming and Xbox is seeing record number across all services Xbox Game Pass, Xbox Live and Mixer. To streamline moderation
and to ensure everyone has the best experience when using Xbox services, these features have been disabled temporarily for the foreseeable future:

• Custom Gamer Picture
• Custom Club Pictures
• Custom Club Backgrounds

but all my friends can change theirs but I can't

the service is temporarily suspended so as not to saturate the servers due to the increase in players, it will be available again in a few days