Phone or PC suddenly hacked.

So yesterday night 5 hours after I fell asleep I woke up to my phone sending me tons of messages. All email notifications said that my crypto was sold and my online credit card was used to buy even more. I sprinted to the PC to check, emails were all deleted, couldn't log into crypto.com and my phone number for recovery was changed. Directly locked accounts. Plenty of second authentification SMS for changing wallet, adding wallet, changing and selling etc. Now I'm not sure what exactly got hacked. The person also tried to recover Ubisoft and steam passwords without luck. My crypto app is behind a password and 2FA, and different IPs and an Android phone (according to Microsoft) are used to log into my email. What got me curious is that a new app has been installed on my phone, SHEIN. I reset my phone immediately afterward. Was my phone controlled by someone else or spied on and my PC is safe?