B6 clutch or syncho

Can anyone tell me how to identify if it is my clutch, or clutch and synchro’s that are bad.
2004 Audi S4 B6 154,000 miles original clutch. Trouble going into 2nd and 3rd gear not ssure if clutch issue. I’m sure clutch is issue going into 1st gear. Just want to verify if synchro’s could be going before just replacing clutch.
Thank you

The B6 has pretty stout synchros. But if your having issues getting into 1st due to a clutch then you would be having issues getting into all other gears as well.

Thanks I guess I’ll just need to dig in and see what I find.