I am kinda happy I just need someone japanese I'm picky when wanting to have a girlfriend is that good trait I have?
No. Stop that. You will never find a girlfriend that is perfect. She will always have their flaws and there will be things that you absolutely hate. Being in a relationship means to look over stuff like that. Being picky won't help you.
That said, f you're looking for japanese women, I would suggest to learn japanese and travel to japan. There are plenty of japanese women there and they also like to date foreigners there. Japanese women like foreigners for mostly being more polite to them than japanese men. So you have a pretty good chance of getting a japanese girlfriend there. You just need to put some effort into it.