I'm freaking out - need some help with my wallet

I bought a new Macbook, and decided to upload data from the old one to the new one with Migration Assistant. For some strange reason things got mixed up, and all data from my old Macbook got deleted.

The worst thing is that I had there connected MyEtherWallet and Unisat wallets where I was holding my crypto, around (30k $)... It had remembered my extensions and I needed only password to log in, now since the browser got deleted (google chrome), they ask me for the long phrase codes, which I cannot find anywhere, and I'm afraid I don't have them, because these accounts were temporary, just to move money to another main wallet.

​

I'm really freaking out, can anyone tell me if I can do something here?...