Saying "don't catch feelings" for a hot, quality female is like saying stand next to a bon fire but don't feel the heat.
If you're human, you will have stronger feelings for certain people no matter how hard you try to fight it. F*uck, even dogs show affection to their owners.
It's OK to have feelings provided you can control your actions. 95% of the time, when a man has strong feelings for a woman, he'll go all beta retard and start coming off as weak, supplicating, soft, etc., which may be "cute" to her at first but if it's ongoing it will turn off a woman more than anything a man could possibly do.
So if you find yourself having strong feelings for a female, great, just remember the Laws of Attraction, DJ Principles, and what turns on a female and what turns them off, and you'll be fine. This mainly comes with lots and lots of practice, so be patient and don't beat yourself up if you do mess up.
But saying, "just don't feel" is humanly impossible. Emotion is the fuel of life. But use it to your advantage, not to your detriment.