Being TOO realistic

Am I too demanding? I guess that’s the reason why I have no friends lol.

I was meeting this guy friend I had, he was late and I won’t deny that I was like wts. Because the fact that I’m a person that HATES to WAIT for something. 

We talk about life. I know a long time ago that I’m always a very realistic and logical person in terms of being a human in this world. We talk about different scenarios and with all the answers I gave him. After all the talks about relationships and life, he concluded that I’m way too realistic and I have to be more positive. 

I won’t lie that I was used to be a very positive person and I have no idea when this realistic mindset just came in and psycho my whole brain. 

He told me that one day this mindset of being realistic will really make my life super difficult. I replied that it has already starting to happen. He told me that he will try to change my mind and stuff but I just gave him a reply that he was just like ‘Wah you too realistic liao.’ 

I actually knew a long time ago that I was damn realistic but I didn't really show out during the early times. But now that I kind of have the ’I don't give a shit’ mindset, I just show whatever that shows like what it is and there no point of thinking the great side. Because it is what it is. If it is going to have a good side of the story just trying to get that if not that's no point thinking that something bad will become good. 

So how? What can I even do to myself to make myself be a better person that I wish to be?