Unfortunately there is no way to take a fake tooth, by your self.
I would suggest you try again to find it, if you cant find it you can request a dentist
to make a temporary crown, which is pre fabricated crown that will be cheaper till you can make arrangements
the forces of biting are too strong,
any thing that you put on your own there will not stay, It has to be done by a dentist
I am sorry You are in this position,
but this an honest answer, you personally cannot do anything that will stay in your mouth, you will have to visit a dentist
please reply if you need any more info