i have compiled a set of How-to pictures to help you:
step 1)
upper right hand corner, select "my profile"
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"http:\/\/i264.photobucket.com\/albums\/ii196\/TMSNPR\/Screenshot%202017-03-28%20at%203.19.41%20PM_zpsd43rvnxt.png"}[/IMG2]
Step 2)
on your left hand side, select your avatar icon and select "edit avatar"
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"http:\/\/i264.photobucket.com\/albums\/ii196\/TMSNPR\/Screenshot%202017-03-28%20at%203.19.51%20PM_zpsn7n5udgy.png"}[/IMG2]
Step 3)
Select "browse"
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"http:\/\/i264.photobucket.com\/albums\/ii196\/TMSNPR\/Screenshot%202017-03-28%20at%203.20.00%20PM_zpsoobkay2u.png"}[/IMG2]
Step 4)
browse to the file containing your avatar youd like to use.
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"http:\/\/i264.photobucket.com\/albums\/ii196\/TMSNPR\/Screenshot%202017-03-28%20at%203.21.39%20PM_zpsdsl8eucb.png"}[/IMG2]
Step 5)
select your image
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"http:\/\/i264.photobucket.com\/albums\/ii196\/TMSNPR\/Screenshot%202017-03-28%20at%203.22.13%20PM_zpsic3plvtl.png"}[/IMG2]
Step 6)
crop your photo and save
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"http:\/\/i264.photobucket.com\/albums\/ii196\/TMSNPR\/Screenshot%202017-03-28%20at%203.22.20%20PM_zpsekuicle9.png"}[/IMG2]
Step 7)
join kool and the gang in celebrating your new avatar