So I've been searching symptoms of schizophrenia and have been scared thinking i may have it. Possibly because my sister was diagnosed with schizophren a while ago.

I'm a 22 male, my sister about 30, I never had mental issues except slight anxiety growing up more of like in the heat of the moment anxiety and i don't know if it's been heightened due to me drinking every night for past 2 years and vaping nicotine for the past 4 month, the anxiousness only started about a month ago, and it's mostly been healthy anxiety for example thinking i have throat cancer from an irritated throat ( most kikely because alchohol and vaping dries your throat). And many other things related to health anxiety.

I haven't had any hallucinations, delusions, or hearing voices. I don't think people are plotting against me in any way. I do have bad dreams here and there, But because my sister has schizophrenia I've been thinking oh crap what if im feeling this way because I'm going to have it? I read if you have a sibling you're more likely to have it.

Some additional information is that i have 5 sibling in total, only one my sister has schizophrenia the rest are fine and much older living life. They also all have a different dad from me, I'm the only one with a different dad to them. And I'm trying to quit alcohol and vaping but for the majority I've been consuming these things i haven't had anxiety until a month ago, but not sure if they have increased my anxiety. Also my parents and grandparents don't have mental health problems not that i know of. 

And maybe i have been a bit depressed being at home alot with covid, but when the anxiety came in a month ago i haven't been taking care of my self alot, like not doing my skin care routine, laundry, cleaning my room, drinking enough water, ect 

I know i shouldnt get a medical opinion on reddit but should i worry about schizophrenia or am i being depressed and anxious and need to quit drinking and vaping nicotine? Someone please make me feel better.