Drinks oil

2013 tdi Passat bought it back in 2020 in march just before the market went to crap had 40k miles and as of now it has 160k I do uber rides with it and Iv noticed she’s started drinking oil more than usual but I can’t tell if it’s burning it all off because of my excessive driving with Uber or if it’s leaking When I check around the engine I’m not seeing any leaks. So I’m guessing it’s burning it off from driving so much. Is there a way to prevent this from happening? Dealers /shops won’t nt help without charging me out the ass for a diagnostic. Also is there any way to get DSG duel clutch trans fluid change without paying $450+? Absolutely love this car I won’t get rid of it until it explodes just want some ownership advice. It’s my first tdi.