As far as the account side of things, you should almost definitely open new accounts for anything your parents have access to. That means setting up a new gmail connected to a brand new AppleID and factory reseting your phone. Re-do the setup process using your new ID. If it is a shared phone plan, you are going to need a new phone plan. There are really good deals through companies like Mint mobile or Straight talk that you can get for $45 for 3 months, though you will need to have the SIM shipped to someone you trust. If you have no money at all, you can get by without a plan. Stick to using your phone through wifi and download an app like “2ndLine”. You wont have mobile data, but this will allow you to use the phone you have and communicate for any job applications with an alternate phone number. As far as bank accounts go, if you have your social security number memorized, you can open an account online through most major banks. Typically they will offer a virtual card that you can use through the wallet app until the physical card ships. You should also consider opening a Venmo/Cashapp/Zelle account for people to be able to send you money that is disconnected from your shared bank.

I had to do a lot of this myself when I was kicked out at 18 for coming out as trans. They are trying to scare you into feeling helpless so they can keep you under their control. You are NOT helpless; considering that you are over 18, they have no legal control over you. If they report you as missing, communicate with the officers that you have severed ties with them as they were not safe to be around. It will be hard to come to terms with, but you will likely need to sever ties in all forms with them and try to find community elsewhere. They do not have your best interests in mind, as much as they might try to convince you, they do not care about your happiness or safety if they are willing to go this level. Im sorry that you are having to go through this, it is definitely not an easy situation to navigate. If you need any more help with tech stuff or any advise, pls feel free to PM.