Will I end up with schizophrenia?

Talk about it with your GP - they can advise you on whether you are at higher risk of developing it or not and discuss your feelings about the possibility etc.

Additionally just because you have schizophrenia doesn't mean the world is over. It can be well controlled with medication and other treatment (e.g. types of therapy for helping you identify when you might be at risk of having a psychotic episode or similar) and allow you to do most of the things you would probably want to do. There are some things you might not be able to do - chances of becoming a jet fighter pilot are probably zilch in that case - but you may find provided you have the necessary support, life will go on as usual otherwise?

From personal experience, they haven’t helped any of my siblings at all. My oldest sister can barely speak now and my eldest brother is only now getting released after spending 7 years in an institution. My other sister is refusing to take her medication and the hospital is doing nothing about it because “they can’t force her if she doesn’t want to”.

No. I would echo what another poster said and avoid smoking and alcohol if you can help it. My extended family have schizophrenia and it runs in my bloodline too. My cousin developed it after excessive drug use. My friend also had schizophrenia run in his family. He also developed it after drug use. Avoid all drugs as cocaine and all other common drugs can trigger it. I also had this paranoia and have had psychosis in the past without schizophrenia. Just take care of yourself and do not worry too much about.

Hey, you clearly know the more clinical and statistical side of things, but, you should book a GP appointment (it isn't a waste of their time) and speak about this with them. You might also want to try calling the Mind Infoline for some general information on this. Basically, the answer is 'maybe', Schizophrenia has a natural incidence of about 1% and in identical twin studies it is 50%, so there is a strong genetic component, however, that doesn't mean you will develop it.

I would advise not to do any drugs and even moderate your alcohol as some research shows that can set off FEP too which then could develop into schizophrenia.

Most importantly, i know psychosis has a lot of stigma and it is a really scary thing, but the treatment options that are now available are pretty great, even those with treatment resistant schizophrenia can find peace and a suitable treatment plan. You can be very successful and very happy with schizophrenia, I have Polymorphic Psychotic Disorder w/h Symptoms of Schizophrenia (basically randomly intermittent periods of paranoid psychosis) and this means I will most likely develop full on schizophrenia at some point in my life. I have also been hospitalized on a few occasions and received community treatment in other cases. But all that being said, I am a really successful person and I am about to become a barrister (hence why this is an anonymous reply), you can too. It is scary, but it isn't like it used to be and you can do so much even with these scary acute mental health difficulties.

My advice, outside of speaking to a GP, is actually to get involved in some psychosis support groups, google 'Epic Minds' or even reach out on some groups online.

If you don’t mind me asking, how long did your psychosis last? My sister recently had psychosis and it’s been a couple weeks or so now and she’s still in the same condition despite being sectioned