Can someone explain me life?

Please someone take the time to explain me why life is such a bitch that once you recover from all the sadness and Star being happy again life just says “Not so fast” and throws a nuclear bomb at you. 

Yesterday at 3:30 am after literal months I finally had the courage to Star dressing how I like no matter what people says, I start putting some outfits to see and match what I wanted tried a few tricks to fake boobs, I had a great day, I went out, saw my little brother perform on his guitar evaluation, even today I went to the mall to help my brother pick some cute gifts for her sick girlfriend, but when we went to deliver them all went down very fast.

I have a lot of anxiety driving with my parents on the car cuz I’m afraid to make something wrong and get yelled at, so there where we my mum, my brother and I, going to my bros gf house on one of the most dangerous zones of my city wich stressed me out even more and then when we arrive my mom and I waited in the car, all was going very smoothly until it was time to leave and my brother didn’t got out and we had to wait a little longer wich pissed my mom off cuz she is really scared of that zone of the city, once my bro returns and enter the car starts yelling at him, these as surprising as it sounds gave me more stress cuz now I have to drive with my mom pissed off on the most dangerous zone. 

here are the pictures of the outfits:

Then a truck stopped traffic and my mom starts yelling at me to move and I told her kindly that please don’t yell at me cuz I was already very stressed out, thats when she decided she had it with both of us and wanted to get out of the car and starts yelling at me to stop so she can get off, wich I responded that I will not do that, and starts acting like a baby and make an scene and now I have to drive home, angry, stressed out, worry that in any second she try’s to get out of the car, with a panic attack trying not to end myself and my family cuz I couldn’t concentrate.

I was having de a really good time in months and then life just takes the lead and make me feel awful, even when we got home it took me several hours to calm down, a literal nightmare.