you can use ..."is" "am" ... it really depends on the content of the sentence ...
there is alot of words you can use for scared such as terrified or
Myself, me
The other words can one use other than confused are deranged, confounded, blended, mixed, disordered etc.
You can use us or all of us.
i apologize
awesome
extremely
Mad, twisted
others, some people
you can use or , otherwise, or rather than.
Talking, communicating, verbalizing.
Exhausted, sleepy, dozy