Most game systems only have one sheet. The 5e Shaped sheet looks like this , while the 5e OGL sheet looks like this , and the 5e community contributed (Actoba) sheet looks like this . If you're playing a different game you'll have to tell us which. However, generally, you simply change the values in the text boxes on the sheet. If you don't see the Character Sheet tab when you open your character's journal entry, then either you don't have control of the character (in which case you also won't see the Attributes & Abilities tab), or your GM didn't set a sheet for the campaign (in which case updating your character is simply a matter of editing the attributes in the Attributes & Abilities tab).
