Wait time of up to 8-10 weeks is what is expected nowadays.
Did you file G-1145 with I-751? If yes, you have 50% chance you'll get email / text message when case is created. Otherwise would have to wait until you receive mail. Then you'll be able to add case to MyUSCIS.
You can check case status then in MyUSCIS OR (probably more reliable solution) here: https://egov.uscis.gov/
The reason it's more reliable it doesn't require logging in, and historically it worked many times when cases temporarily dissappeared from MyUSCIS or it gave some error.