What happens to my data after I remove google account from phone?

[AC Question]

I want to remove my old google account from my phone. I got a new one and I want to completely remove the old one from my phone. But when I try to, it says "Removing this account will delete all it's messages, contacts and other data from this device" I don't want to lose my contacts and messages. Also, will it affect my photos? What do I do? Also don't tell me to back anything up on a computer because I don't have one.

 

[belodion]

Those things will indeed be removed from the device, but if you have backed up your data first, to your Google account for example, they will then be accessible on your new phone. If not, they will be lost. Texts need special backing-up.
Before going any further, what is the old phone and the new one?