I really like what
@scout86 said. I think that is true.
Something I recently noticed occurs with me
@BlueBerry6999 , that might be useful for you to make note of, is like I am way too impressionable. By that I mean, if I hear something said on the radio or news, or overhear, or whatever, next thing I know is I'm thinking of it in some way as it applies to me, or could, or my family or whatever (and it's never good). Then it seems I am realistically thinking of the situation I've been reminded of, or fears, or fear of the present or future, and yet it's all because some other seed got planted. With reminders of traumatic reminders it's even worse.
Far as fixing families go, there's only so much one can do at any given moment, IMHO. If you wait for that you won't get married at all. You can only do the part relevant to your thoughts or responisbilities. In this case it's your wedding, so it's up to the 2 of you to choose, with or without everyone's blessing. But most of all, if you choose it hopefully it will be a happy event, as it should be and you deserve.
Best wishes to you.
ETA^^, or maybe this is something I notice under high stress, or more stress (including not feeling well physically or exhaustion).
I meant to say, I think it is correct to realize you would be marrying 'in to' a different family, but also family dynamics within each family are unlikely to shift markedly even within a lifetime, esp if the other parties don't want that too, and don't feel a need to address their own role, as you also address yours. But, the 2 of you are building your own family. Healthy boundaries are very helpful. (For example, other people's input on the wedding, you can say, "Thank you, we will take it in to consideration'. Being assertive (but still kind) now will help you later.)
You are very right to notice and acknowledge what could be improved upon, eg communication, because getting married won't magically change that or turn the other person in to someone else (or cure your ptsd). Or prevent other stress, eg financial or having children. But, under high stress esp small things can assume a greater importance or seem a bigger deal or bigger red flag than would be otherwise.
There are also more options than bl-or-white, cancel or have the wedding. There is postpone- or rather reschedule. There is what do we
both, each and together, really want/ need. (Now is good practice for hard discussions like that, not taking personal offence but helping meet each other's needs/ dreams, compromising. ) But most of all knowing you love each and other and are on the same team.
Good luck!
