I think you can create your reality. It depends upon the vibrations you put out and take in.

So sure, all depends on the individual and the type of realities to create

mostly everyone is a creator. some create their own reality and live in it, some create something for others to live in, whereas many live in someone else's reality, knowingly or unknowingly, creating within.

living in someone else's reality is not always great, because the rules can be quite numerous and obscure. alternatively, one can become a sophisticated parasite, work their way into someone's pleasant realm, make it terrible and maybe get kicked out later for sucking up value.

perhaps everyone could remind themselves that they are a temporary & conditional guest, hanging out in each other's created universe without coercion or dishonesty, while striving to provide some real value. that would be amazing.

I think we can. Look at many examples of sports figures who dreamed since childhood of being good at their craft, and they achieved it. Not everyone will get there, but the big part is to believe in yourself and do everything/anything to get there, with dedication and trust in your abilities. Also, positive thoughts create positive outcomes; no one who doubts himself ever reaches the top. The human mind is a powerful thing. Have a plan (many people miss that part) and execute it. Tweak it as you go, but be directionally correct, and you will get there. There are reasons why our cliches are popular (and true): "You can do anything if you put your mind to it," etc.

".....It matters not how strait the gate, how charged with punishments the scroll, I am the master of my fate, I am the captain of my soul...." INVICTUS - William Ernest Henley

Yes, I think we can.

We know visualization works at the psychological level, so yes.