Girls can be difficult for guys because guys focus on one task at a time where women focus on several! We are very confusing because of this. We also come off harsh when we don't mean to! For me, even if I'm trying to be nice, I'm in a bad mood so I come off incredibly rude. But, if these women are seriously degrading you and making you feel like less of a man, you should 1) talk the her/them 2) if they don't try to make a change, then tell them they can't be in your life anymore. It's not okay for them to make you feel like less of a person!
Actually, they aren't, you just haven't learned how to see things from their perspective. The key secret is that you have to think of them as people just like you, possibly with slightly bit different experiences in life.
Personally, I think an important life-long skill would be to understand women because their all around you - and we ain't leaving Some women are more picky than others or drive you more mental than others but trying to keep your cool is - like I said an important life-long skill If its your women friends your talking about - try and find ones that you can handle. If its customers or strangers, your only with them for a short period of time, just think how their boyfriend or husband feels (lol)
Don't worry about them right now, brother. Girls at your age are immature. Give it time. In the meantime, play video games, chase cars, or whatever your hobbies are. Pursue what you love, not who you lust after! Then, you will know inner piece.