Hey Eaven (and all the others) *wave*
Hope you are all doing well.
We (me if that helps lol) see that you feel pressured to start refferring to yourselves as singular (one person) rather than a plural (many). Some of the worst times in our life has been when we started beleiving we were not real and we wre just one person seriously decieved. Most (if not every single one) of the professionals we have spoken to have treated us this way (that we are not real and only one person). This is a seriously difficult condition for someone to understand properly if the ydo not live with it.
For us it is hard enough to all be expressing ourselves - our needs and desires and wants with only one vessel without having people telling us to just pretend we are not real (and thus not express ourselves). Some of the most tormenting times in our life has been when we have been buried down deep because people told us (or commande dus in some instances) to stop calling ourselves by other names and just be the person who is on the birth certificate.
Indeed, when we were 5 or so our adopted parents rejected us all so deeply - by commanding us to cease mentioning other names and just be the person they had named us, that we were forced to create a new alter to be able to live this life with our new parents (as they wouldn't accept any of us). The new alter we had to make was completely amnesiac and for 20 years had no idea he lived with hundreds of others. This had to happen because we were rejected repeatedly and unable to express ourselves.
Now as of last year that dominant alter finally woke up and discovered the others he lives with and now we are all mostly working together, and getting more and more able to express ourselves and find peace (for us it is in Jesus Christ).
Since the time our amnesiac alter woke up we have been repeatedly attacked by people (professionals, friends, and family) to stop being who we are and just be the person they can see (our body and the person on our birth certificate - which is not even our real name we should add). These attacks have been deeply wounding and we have been close to giving up on life many times. It seems no sooner have we gotten relatively recovered form the last attack and rejection that another would come from best freinds, or others. We have come to a place where we no longer put up with this stuff.
We are who we are and we are this way because we had to become many in order to survive what happened to us. If people don't like it or can't handle it then it is their problem.
For us we are very blessed because God calls us by our names and shows us love - and heals us of our painful memories. most people refuse to call us by name.
We believe that there is a reason why we feel uncomfortable referring to ourselves as 'I' it is because we are 'we' and nothing will change that. It is obvious you guys are multiple and not just one person and we believe you. If you feel pressured then we suggest (since you asked) that you do not go along with it.
Our personal opinion of this sort of thing that you say your counsellor is trying with you is that people will rather get you to act normal than deal with the huge pain you must be carrying. It is also probably because this person doesn't really believe you guys are real individual people. If this person truly understood you guys they would NOT try to shut you all away.
We encourage you (from one multiple to another) to not cave in to this pressure to be easily referenced as 1 person.
However in saying that, it is also wise to come to an agreement amongst yourselves to refer to yourselves as "I" or "me" in public around people who are just going to be confused because they only see your body. For us we refer to ourselves as "I" or "me" in most public encounters and it isn't hard for us (usually though sometimes it still hurts) because usually there is one alter who is in control at the time and it is that one alter who is speaking to the outside world when in public and so that alter will naturally be able to refer to themself as "I" or "me" won't they ?
We know how desperately you guys may want to each be recognized by people but the unfortunate reality is most people will not understand. The ones who do are a blessing. So don't hide away behind I or me but in public around people who don't understand learn how to work together in such a way that the dominant alter at the time can refer to themselves as I or me

(hope you understand hehe).
We find that this works well but there is still the pain of being called by our birth certificate name when in fact we all have different names. For eg: in public Charlotte is controlling the body at the time (and talking to people). Charlotte knows she is Charlotte and the others all know she is Charlotte. Charlotte is in control so she can say to the people we meet "Hi how are you ? I myself am fine thankyou" and they are none the wiser. But if they say "what is your name?" we have to tell them the name on our birth certificate or else things do not work properly lol (especially if you need to fill out forms and stuff). When this happens Charlotte (who is in control at the time) has to say "my name is ***** nice to meet you". This is usually painful for us all because it is not true (though it is not lying either) but we have to go through with it in order to survive in this world. Dealing with the world in this way however does not at all mean we are pushing ourselves down under a lie like somepeople would like us to do - it is just being wise. Even as we go through our day like this we are all constantly talking with one another whether it be internally or with our mouth. We never cease to be a plural.
Hope our ranting brings you support
We love you gys and God bless you all
From Vaden, Charlotte and a few others

Cya