Well, you know that sort of discussion parents might have with kids before they enter puberty? Well, you sort of entered something like that.
You don't have an identity crisis, because you have a new identity actually. Your new identity is still evolving and forming, whether you like it or not.
And by identity, I mean everything, not just your morals and principles or whatever people think of their "insides." You actually had some insides torn out and rearranged.
One thing that is constant through human history, that you will have to experiences in, will be the economy. You will have access to new jobs you can participate in because you will be physically healthier, or jobs will be easier to perform. You will have new participation in the economy by having access to new forms and a greater variety of fashion because more clothes will fit you (not just fashion, but clothing for sports, work and fun). When you need to buy a lawn chair, or an office chair, finding the chair with a high seating load will no longer be requirement.
You will be healthier and able to participate in more leisure activities, you'll be able to physically stand longer, walk farther and have more endurance. This expands your horizon, and the people you meet and the experiences you enjoy. Even fitting better in an airplane seat, or a bus, makes you more apt for travel. You will find entire ranges of sports now possible. Pre-op, I could not stand for longer than 30 minutes. Now, I can do back to back sword fighting classes. Never conceived the idea I would be able to be a first responder, now - I may be joining a volunteer fire fighting company.
You will be seen differently by other people. This translates to every form of personal interaction, work, personal, love interests at all levels.
I could go on and on. But all of this, put together will give you a new identity. You will be a different person because you will be engaged in society differently.
It all boils down to one thing: Carpe Omnia (Carpe Diem is for pre-op....)