Bought a new phone Samsung Galaxy j* prime. Switched to a new phone number. My account...

Bought a new phone Samsung Galaxy j* prime. Switched to a new phone number. My account on snap obesechigga is still logged on my old phone Nexus *p but I forgot the password for my snapchat. The phone number to verify for that account is my old phone number **(***)***-****. I want to log onto my new phone with my Snapchat. When I get a verification code because I typed in my new phone number they ask me to put in my password for security reasons... Which I don't know. I never verify my email till now but in my vent of frustration I verified the wrong email by typing it wrong. I typed down *****@***.com but my email is actually imikasa***@gmail. Smh so the verification was sent to *****@***.com which I don't even own. So to sum it up I have access to snap through my old phone. I can't change the password because I forgot it and when I try they ask for me to write the password for security reasons.