Teenagers really do get dumber in social intelligence and values when it is a time of puberty. everyone in the society knows about this clearly but the fact of the matter is that they don't really talk about this publicly at least not most of them talk about this. But this is the actual time when the teenagers need their well-wishers around them the most. There are changes of emotions, values inside but they really don't understand these changes. Suddenly the nonsense one seems to be the smartest and the person they use to bully all the time seems hottest and one is just confused around this objectification inside their head.
Everything at this matter of time seems to be in jeopardy. It always comes with age. In fact its deeper than the matter of age. It's about the way you see the world and understand the sort of stuff. The way your perspective changes everything. The way you see the world or the way you dress yourself and others. The way you react, the things you value, the way you try to entertain yourself. All those things or values you develop around this time makes all the difference around you. In this matter of time, you are just inspired by many stuff and you wanna be someone else whom you admire but the thing you don't understand during this period is, that it's ok to be you, its ok not to be perfect for someone, its ok not to be ok.
The first time you saw someone differently the way you have never seen her/him before and that person seems important to you. Everything about that person changes for you. You develop so many types of feelings during this matter of time such as rage against someone, the attraction for someone, confused regarding your values, lack of confidence and feeling very confident at the same point of a moment. All this seems different but it's not wrong its termed as mood swings. In this period you begin to develop some habits such as keeping the door locked during day times, spending most of your times in front of the mirror, secretly chatting with someone. And just to avoid any kind of guilt or pressure you just need to talk to someone either your parents, siblings, friends, or counsellors. Most of the times children are ashamed of discussing this things with their parents and hide stuff from them, this is also normal but you just need to talk to someone if not parents then someone else, someone close to you whom you can trust.
The first feelings are not wrong its just something you need to understand properly and then embrace it.