Armus, you need to sort out all your self contradictions.
You SAY you're not desperate. But you've set yourself the target of getting a girlfriend within the next week. That's desperate. Set yourself the target of getting a girflriend by Valentines Day 2021.
You SAY you're intelligent, and you want a girlfriend, but you never approach anyone that you find attractive - which is just plain stupid and self-defeating.
You SAY you don't chase girls. But you DO - in your head. Very much so. Stop chasing them in your head. Get to know a few as platonic friends. IE simply widen your circle of friends to include some females. From there nature will take its course and you will end up with a girlfriend from one or more of them - if you are worth having as a boyfriend. If you are not worth having as a boyfriend, use your intelligence to analyse why and then change yourself.