Hello there,
Here is a Gif to help you change your profile photo (avatar) ! ->https://imgur.com/NmuA5VR
Main account:
Head to https://truckersmp.com/profile/settings
Click on Edit Profile ->
Now you have two options, using Gravatar or uploading a file from your PC. I'd recommend doing the second option. It's easier. To do so, check the upload box, click on Choose file and search the picture you want to use.
Forum Account :
Go to your profile and click on this ->https://imgur.com/ZKEqQZc
Follow the procedure explained on the third point of the Main Account instructions.
Also you remember , that some avatar(photo,GIF) can be breaking the rules
Taken From TMP Rules :
Flashing and blinking images/GIFs are not allowed. This type of content can negatively impact on those that suffer from photosensitive epilepsy, who are vulnerable to flashing lights or contrasting light and dark patterns.
Kind Regards,
Mehmet [24]